Hospital or emergency room care for cannabis use among middle-aged and elderly individuals may lead to an increased risk of developing dementia, according to a large Canadian study published in Jama Neurology. Over a five-year period, individuals seeking care for cannabis use were almost twice as likely to develop dementia compared to the general population.
The study, which analyzed medical records of six million Ontario residents from 2008 to 2021, highlighted a 23% higher risk of dementia among cannabis users compared to those seeking care for other reasons.
While the study did not specify the amount of cannabis used by participants, it did not establish a causal relationship between regular or heavy cannabis use and dementia.
Dr. Daniel T. Myran, the study’s lead author, emphasized the need for further research to explore the potential link between cannabis use and dementia. He acknowledged the complexity of determining whether cannabis use could lead to dementia and highlighted the importance of addressing these concerns.
Previous research by Dr. Myran indicated a higher mortality rate among individuals with cannabis use disorder and noted an increase in cases of schizophrenia and psychosis related to cannabis use in Canada.
Recent studies focusing on the impact of cannabis use on cognition have provided valuable insights, highlighting potential risks associated with regular or heavy cannabis consumption.
While previous research on cannabis and dementia has been limited, the strength of the new study lies in its large sample size and long-term follow-up of patients. Dr. Madeline Meyer, an expert not involved in the study, commended the study for its ability to rule out dementia at the outset and track the temporal relationship between cannabis use and dementia.
Dr. Meyer’s own research has linked cannabis use with neuropsychological decline, challenging the perception of cannabis as a harmless substance with potential medical benefits.
She emphasized the importance of taking the association between cannabis use and dementia seriously and considering the potential risks it may pose.
The increasing use of cannabis among older adults has raised concerns about potential health risks, including the development of dementia. A new study found a significant rise in cannabis-related medical visits among adults aged 45 and older, prompting further investigation into the potential impact of cannabis on cognitive health.
Comparing individuals with cannabis-related medical visits to the general population, the study highlighted a higher incidence of dementia among cannabis users, emphasizing the need for comprehensive evaluation of the risks associated with cannabis use.
While some factors contributing to the increased risk of dementia among cannabis users can be explained, others remain unclear, requiring further research to fully understand the potential relationship between cannabis use and cognitive decline.
Dr. Mylan and his colleagues found that individuals seeking care for alcohol use are more likely to be diagnosed with dementia than those using cannabis, highlighting the complex nature of substance use and its impact on cognitive health.
Despite efforts to control for various factors, there are still uncertainties surrounding the potential link between cannabis use and dementia. It is essential to consider all possible variables that may contribute to the development of dementia in cannabis users.
An Alabama woman lived with pig kidneys for a record-breaking 130 days before her body began rejecting them, leading to their removal and a return to dialysis, doctors announced Friday.
Following her removal surgery on April 4 at Nyu Langone Health, Towana Rooney steadily recovered and went back to her home in Gadsden, Alabama. Rooney expressed gratitude to the doctors for allowing her to take part in the study.
Rooney stated, “While the outcome was not what anyone would have hoped for, I have learned a great deal from having pig kidneys for 130 days. I believe this experience can benefit and inspire many others on their journey to overcome kidney disease.”
Scientists are working on genetically modifying pigs so that their organs are more similar to human organs, addressing the significant shortage of transplantable human organs. With over 100,000 people on the US transplant list, most in need of kidneys, and thousands waiting and dying, this advancement is crucial.
Prior to Rooney’s transplant, only four other Americans had received experimental xenotransplants using gene-edited pig organs – two hearts and two kidneys – all of which failed within two months. The recipients, who were severely ill before the surgery, did not survive.
Currently, researchers are attempting to transplant these pig organs into patients with less severe illnesses, like Rooney. A man from New Hampshire who received pig kidneys in January is doing well, and a comprehensive study of pig kidney transplants is scheduled for this summer. A Chinese researcher also reported successful renal xenotransplants recently.
Since 2016, Rooney has been on dialysis and was ineligible for conventional transplants due to her body’s predisposition to reject human kidneys. Turning to pig kidneys proved successful for her, allowing her to extend her life significantly. She referred to herself as a “superwoman” and lived longer than anyone with gene-edited pig organs before her body began rejecting them in early April.
Dr. Robert Montgomery, a pioneer of Nyu XenoTransplant and Rooney’s surgeon, stated that the rejection is being investigated. He emphasized that removing the pig kidneys was a safer option than continuing with high-risk rejection drugs.
Montgomery explained, “We took a safe approach. Rooney is not worse off post-XenoTransplant. In fact, she feels better as she had a four-month break from dialysis.”
Prior to the rejection, Rooney experienced infections associated with dialysis, while her immunosuppressive anti-rejection drugs were slightly reduced, allowing her immune system to revitalize after the transplant. These factors likely contributed to the rejection of the new kidneys.
Rejection is a common concern following organ transplants, which can result in the loss of new organs. Doctors must strike a delicate balance between suppressing the patient’s immune system, fighting infections, and maintaining the new organs.
This challenge is even greater with xenotransplants, where patients still require immunosuppressive medications despite modifications made to pig organs to prevent immediate rejection. Researchers are exploring different combinations of medications to find the most effective approach.
Montgomery believes Rooney’s experience will yield valuable insights for future clinical trials. Achieving successful xenotransplants would be a significant achievement with benefits for patients in need of organ transplants.
It is the rarest and most exclusive chocolate I have ever had. In fact, you can’t even buy it in the store. But that’s not that special. Just a few flat drops are slightly lighter in colour than most dark chocolate sealed in small plastic bags.
It smells like dark chocolate and tastes like that, but it doesn’t make it that bitter. Above all, for me, this is definitely true.
That’s important because what I’m eating wasn’t made using cocoa beans that were sourced from trees, like regular chocolate. Rather, it was grown in glass flasks by California cultureOne of several companies aiming to mass-produce chocolate in the bat using cell culture technology.
Cultivated chocolate may be even better than the types grown on trees, according to the company’s CEO Alan Perlstein, claiming that the level of chemicals, such as polyphenols, is high. There may be health benefitsthere is no contaminants such as heavy metals extracted from soil or pesticides, pesticides sprayed on crops, or taste currently on the market. “We are trying to create flavors that are almost unruly available through traditional chocolate production,” he says.
However, for many chocolate companies, the main attraction of getting raw wood from VATS instead of wood is its potentially unlimited supply. Climate change is hitting cacao farms violently, leading to shortages. Cocoa bean prices have quadrupled after staying relatively stable for decades.
So, can chocolate grown in VAT really compete with the diversity grown on trees at the price? And will consumers accept it?
Ringworld by Larry Niven won both Hugo and Nebula awards in 1970, and received massive acclaim. It has been printed ever since.
It came out when humans had just landed on the moon and we seemed to be heading towards the stars. The title alone evokes a particular golden age of science fiction when (most male) writers wrestled with big physics and big ideas, imagining a distant future in which humans took on galaxy adventures.
Authors like Niven were pride in trying to get science right because they wanted to imagine what was in the universe. and Ring World Features New Scientist This month seemed like a good time to revisit Book Club and novels, and finally read it as a teenager.
How did this 55 year old work stand the test of time? After all, many books from this era are grossly dating. Because science has now made their plotline stupid. Sometimes, because sexual politics (or other cultural aspects) have begun to stink for decades.
First of all, this book is packed with ideas! You can see why it was a smash hit and eventually became part of a vast network of follow-up stories, prequels and spinoffs.
Considering how much internal lore is thrown at us, I found the novel surprisingly zippy and exposition light. Our 200-year-old hero, Louis Gridley Wu, was approached by alien Ness, known as a human-seasoned adventurer and puppeteer, and asked to come to a mysterious mission in exchange for access to new technology.
Ring World Evokes the golden age of science fiction when writers (mainly men) wrestled with big physics and big ideas
Woo and Nessus are to join their adventures with a belligerent “Kuchinti” alien like cats called Speakers and Animals (the animal in question is the other species) and a young human woman named Tierra Brown, who became apparent only later in the story. The gang travels to Ringworld of the same name and crashes after being fired by an ancient security system.
Ringworld is the star of this show. This is an ancient craft on an unthinkable scale. A world of ribbons looped around the stars, 1.6 million kilometers wide and an internal surface area of 3 million Earths. It has a diameter of 305 million kilometers and is made from a material with incredible tensile strength. In the Terra-formed innermost part of Ringworld, civilization has fallen, but life continues.
Woo and the gang have to find a way to move a vast distance across the inside of the ring and leave it. Along the way, as you can imagine, they have a lot of adventures.
There is something modern editors would probably want to cut about this 1970 novel convention, and they may want to give female characters more depth.
Meanwhile, science was thoroughly separated by readers at the time, so Niven’s follow-up, Ring World EngineerThe S, published 10 years later, was a counterargument for all people who understood the fundamental mechanism. Ring World.
This isn’t my favorite Niven. In other words An outdated world. However, revisit Ring World I starved him to return to his universe. I’m going to reaffirm some of his other classics The Mot of God’s Eyesimilarly Ring WorldThere are many interesting questions that you won’t be able to answer in the first book, so there’s a follow-up.
Strictly speaking, this section should be entitled “Larry Niven also recommended.” I recently exchanged emails with him to plan an interview and I asked him which of his books he would specifically recommend to me. He answered immediately Draco Izakaya. I didn’t have time to read it yet, but I’m very happy to be able to share this recommendation with the man himself..
Emily H. Wilson is the former editor of the new scientist and author of the Sumerian trilogy set in ancient Mesopotamia. The final novel in the series, Ninshuval, will be competing in August. You can find her at emilyhwilson.com or follow her on x @emilyhwilson and instagram @emilyhwilson1
Arts and science of writing science fiction
Explore the world of science fiction and learn how to create your own fascinating science fiction stories in this immersive weekend break.
The office situated on the ambiguous corner of the federal government, where NASA relies on to safely land astronauts on the moon, is facing pressure to cut at least 20% of the close team of experts for Mars’ robotic probes, according to two individuals familiar with the directive.
Staff reductions have reportedly already commenced at the Astro Geography Science Center in Flagstaff, Arizona, with more employees expected to be terminated following a recent call for early retirement and resignations on April 4th. The office, which is part of the US Geological Survey under the Department of the Home Office, is the target of cost-cutting efforts initiated in January with a substantial email sent to the federal government by Musk’s team.
Representatives from the Department of Home Affairs, USGS, and the Astro Geography Center did not respond to requests for comment regarding the staff reductions or potential impacts.
The cuts could potentially impact the mission of sending a crew to Mars in the future, a significant objective for Musk, who is the founder of SpaceX. He envisions a company that can make human life multiplanetary.
Matthew Golombek, a geophysicist at NASA’s Jet Propulsion Laboratory, has been involved in selecting multiple probe landing sites on Mars and described the precise mapping at the Astro Geographic Science Center as the “gold standard used by essentially everyone in the community.”
At the beginning of this year, the office had 53 employees, with eight already set to depart and more encouraged to consider the latest offers.
Dr. Golombek emphasized the importance of the center’s experts for mapping excellence and site selection for almost every landing. He expressed concern about losing the highly experienced and knowledgeable executives from the center.
The repercussions of reducing the team of interplanetary mapmakers in the office are significant, as Jared Isaacman, the NASA-backed presidential candidate under President Trump, proposed a “parallel” effort to send astronauts to Mars during a Senate committee meeting.
One researcher at the Flagstaff Office voiced concerns that amid shifting budget priorities, personnel cuts could be detrimental to mapping and critical projects in planetary science, crucial for human exploration.
“I can’t fathom randomly cutting 40% of the remaining staff without canceling the entire project,” the researcher stated.
The researchers added that even the departure of just five workers could significantly impact the office, depending on seniority and field of expertise.
Two employees, who requested anonymity to protect their government careers, were aware of the recent call for volunteers for the “deferred resignation/retirement program” at a recent staff meeting. Essential layoffs known in the federal government if insufficient employees volunteer.
The field of astronomy is interdisciplinary, with experts in terrestrial fields like mineralogy, volcanology, and geography that are valuable for space exploration. The USGS Astrogeology Center, though part of an internal division, closely collaborates with NASA and is largely funded by the agency.
For decades, the Center’s experts have been pivotal in creating detailed topographic maps of various celestial bodies, strategic planning, and scientific goals for NASA missions.
The scientist also provided lunar geology crash courses to Apollo astronauts like Buzz Aldrin and Neil Armstrong, which enhanced their knowledge of rock sample collection. This training has been revived for NASA’s Artemis program, aiming to return astronauts to the moon’s surface in 2027.
Office geology experts played a crucial role in finding new landing sites for historic Viking Mars landers after the original site was deemed unsafe in 1976. In 2021, a rover safely landed on Mars and was guided autonomously using maps and software from the Center.
Companies in the commercial space sector also rely on the expertise of the Astro Geographic Science Center.
“SpaceX has consulted the USGS in the past, and the USGS team was enthusiastic,” said David SF Portree, a former archivist and public relations manager at the Astrology Science Center, a semi-self-historist and science writer in Arizona.
SpaceX did not respond to requests for comments regarding their work at the Astrogeology Center or the impact on their Mars program.
Mr. Porterie expressed concerns about the long-term effects of NASA’s 50-year plan for the crew’s mission to Mars and the executive order for a government-wide employment freeze, which affected student contractors at the office.
Dr. Edwards from Northern Arizona raised concerns about the mass recruitment of probationary workers, stating that it could lead to the dismissal of subject experts.
He emphasized the importance of maintaining experienced staff to ensure the continuity of specialized expertise in the field.
On the last day of March, surgeons at Massachusetts General Hospital began surgery that they hoped would lead to lasting changes in the way the kidneys are implanted in people.
The patient that morning was not a human. It was a pig and was anesthetized on the table. The pig had one kidney missing and needed an implant.
Kidneys usually need to be transplanted within 24-36 hours, but the kidneys that enter the pig were removed 10 days before and frozen earlier that morning.
No one ever transplanted frozen organs into large animals. There were a lot of things that didn’t work out.
“I think there’s about a 50% chance that it will work,” said Kolkout Wygun, a surgical professor and team leader, before the surgery. Dr. Uygun is on the Scientific Advisory Committee of Sylvatica Biotech Inc., a company that develops freezing methods for organ maintenance.
But the promise from the organs of freezing and storage is fantastic.
There is a severe and continuous shortage of kidneys for transplants – That’s all 92,000 People are on the waiting list. One reason is that the 24-36 hour window is very short, so limit the number of recipients that are good matches.
How good is it to have a bank of stored frozen organs, as organ transplants can be like an elective surgery?
At least, it was a decades-long dream of a transplant surgeon.
However, the medical researchers’ attempts to freeze organs were thwarted at every turn. In many cases, ice crystals formed organs and destroyed them. The material was also intended to stop the crystals from forming, the anti-freeze agent was toxic and killed cells. Or the frozen organs became very brittle and cracked.
In what wasn’t exactly the tax evasion trial of the century – given that it took place in the second century – the charges faced by the defendants were so weighty that they included forgery, financial fraud, and fraudulent slave sales. While tax evasion is an age-old practice, these particular crimes were deemed extremely serious under Roman law, with penalties ranging from hefty fines and lifelong exile to grueling labor and, in the most severe cases, being devoured by wild animals in a practice known as damnatio ad bestias.
The details of the allegations were recorded on papyrus, which was discovered decades ago in the Judean Desert and recently subjected to analysis. The documentation includes preliminary notes for the prosecutor and hastily drafted minutes from the judicial hearings. According to the ancient records, the tax evasion schemes involved document tampering, illicit slave sales, and manumission.
The accused in both tax cases were men. One of them, Gadalius, was the son of a poor notary who had ties to the local administrative elite. In addition to convictions for extortion and forgery, his extensive list of transgressions included banditry, incitement, and four appearances in court for tax evasion before the Roman governor. Gadalius’s partner in crime was a certain Saurus, identified as his “friends and collaborators,” and the mastermind Caper. While the ethnicity of the accused is not explicitly mentioned, their Jewish background is inferred from their biblical names Gedaliah and Saul.
This ancient legal saga unfolded during the reign of Hadrian, around the year 130 AD or possibly before 132 AD when Simon Bar Kochiba, the leader of the Messianic rebels, launched a large-scale uprising, marking the third and final conflict between the Jewish people and the Empire. The rebellion was brutally suppressed, resulting in hundreds of thousands of casualties, mass expulsions of Jewish communities, and the renaming of Syria and Palestine by Hadrian.
Anna Dolganov, a historian of the Roman Empire at the Austrian Archaeological Institute who deciphered the scroll, remarked, “The papyrus sheds light on the Roman authorities’ suspicion of their Jewish subjects.” She pointed out that there is archaeological evidence of a coordinated effort during the Bar Kochiba rebellion. “It is plausible that individuals like Gadalia and Saurus, who sought to subvert Roman rule through tax evasion, were involved in the uprising’s planning,” Dr. Dolganov suggested.
In the latest edition of Tyche, an ancient journal published by the University of Vienna, Dr. Dolganov and three colleagues from Austria and Israel present court proceedings as case studies. Their research unveils how Roman institutions and imperial law influenced the administration of justice in an environment with relatively few Roman citizens.
“This document provides intriguing and valuable insights into the slave trade in this region of the empire,” noted Dennis P. Kehoe, a classicist at Tulane University not involved in the study. “The allegations may involve the Jews owning slaves.”
Tracing the Papil Trail
The exact date and location of the papyrus’s discovery remain uncertain, but Dr. Dolganov suggested it was found by an ancient Bedouin dealer in the 1950s. She suspected Nahal Haver, a steep canyon west of the Dead Sea where Bar Kochiba rebels sought refuge in a cave hid along the natural fault line of a limestone cliff. In 1960, archaeologists unearthed documents from the era in one of the Jewish hideouts, with more discoveries made since then.
A 133-line irregular scroll, initially misclassified, went unnoticed in the Israeli Antiquities Authority archives until 2014 when Hannah Cotton Parietl, a classicist at the Hebrew University of Jerusalem, identified it as being written in ancient Greek. Given the complexity and exceptional length of the document, a team of scholars was assembled to conduct detailed physical examinations and cross-referencing with historical sources.
Deciphering the papyrus and piecing together its intricate narrative posed a significant challenge for Dr. Dolganov. “The text features small, densely packed letters and highly rhetorical Greek replete with technical legal terminology,” she remarked. Unlike more straightforward documents such as contracts, there were no standardized templates for translation ease. “The fact that we only have the latter half of the original text further complicates matters,” Dr. Dolganov added.
Researchers speculated that the tax evasion scheme aimed to circumvent official scrutiny. This necessitated meticulous detective work to decipher the sequence of events. “I had to adopt the Roman fiscal authorities’ perspective to grasp the text’s nuances,” Dr. Dolganov explained. She also had to step into the accused’s shoes to understand the rationale behind tax fraud in the remote fringes of the Roman world.
The ancient stratagems resonate with contemporary tax experts. A German legal expert relayed to Dr. Dolganov that the subterfuges of Gadalius and Saurus mirrored present-day practices of tax evasion, such as asset shifting and fictitious transactions. The Roman interrogation methods aligned closely with modern-day investigative custody for financial crimes, marked by intimidation and frequently rigorous questioning.
A Princeton University classicist unaffiliated with the project, Brent Shaw, remarked:
Championing a Rebellion
The cases against Gadalius and Saurus were bolstered by intelligence provided by informants who betrayed them to the Roman authorities. Interestingly, the text implies that the informer might have been none other than Saurus himself, who implicated his partners to shield himself from an imminent financial scrutiny. The most plausible scenario posits that Saurus, a Jewish resident, orchestrated the pseudo-sale of several slaves to Chareas, a neighbor residing in the adjacent Arabian province, as per Dr. Dolganov’s interpretation.
By selling slaves across provincial borders, Saurus sought to obfuscate assets from scrutiny. While physically present in Saurus’s custody, the slaves, undocumented in Arabia, evaded declaration by Chareas. “Effectively, the slaves vanished on paper from Judea and never materialized in Arabia, eluding Roman oversight,” Dr. Dolganov noted. “This ensured that no further taxes were levied on these slaves.”
The Empire implemented a sophisticated system for monitoring slave ownership and collecting various levies, including a 4% tax on slave sales and a 5% duty on estates. “To emancipate empire-owned slaves, detailed documentary evidence of current and prior ownership was mandatory,” Dr. Dolganov elucidated. “Any missing or dubious documents would trigger an inquiry by Roman administrators.”
In an attempt to conceal Saurus’s double-dealings, Gadalius, the son of a notary, allegedly fabricated bills of sale and other legal documents. When authorities detected irregularities, the defendant purportedly bribed the local municipal council for protection. During the trial, Gadalius shifted blame onto his deceased father for the forgeries, while Saurus implicated Chaireas in the document tampering. The papyrus does not provide insights into their motives. “The rationale behind men risking forgery to liberate slaves without legitimate documentation remains a mystery,” Dr. Dolganov mused.
One conjecture posits that by orchestrating fake slave sales followed by manumission, Gadalis and Saurus may have been adhering to a Jewish religious mandate to free those enslaved. Alternatively, there might have been a profit incentive in capturing individuals across borders, potentially entrenching them as free Romans after freeing them from “enslavement.” Or Gadalia and Saurus might have engaged in human trafficking, a possibility that is as speculative as it is fraught with implications, Dr. Dolganov emphasized.
One aspect of the trial that struck Dr. Dolganov was the prosecutor’s professionalism. Employing sophisticated rhetorical strategies reminiscent of Cicero and Quintilian, the prosecutor exhibited a mastery of Roman legal terminology and concepts in Greek. “Here, on the edge of the Roman Empire, we witness a highly skilled legal practitioner steeped in Roman law,” Dr. Dolganov remarked.
The papyrus does not reveal the final verdict. “If a Roman judge deemed these men as incorrigible criminals deserving execution, Gadalius, as a member of the local elite, might have met a more merciful end through decapitation,” Dr. Dolganov suggested. “In any case, it beats being torn apart by a leopard.”
Broadcast journalist Gale King and singer Katy Perry were set to embark on a brief journey to space on Monday aboard a flight operated by Jeff Bezos’ private company Blue Origin. This marks the first all-female crew going to space since 1963.
Their flight on Blue Origin’s New Shepard Rocket was scheduled to launch from Blue Origin’s launch site 1 in West Texas, approximately 120 miles southeast of El Paso. The launch could occur as early as 9:30 am Eastern Time.
This flight will be the 11th human flight for the New Shepard program, having carried 52 individuals, including repeat astronauts. Above the Kalman Line, which marks the internationally recognized boundary of the universe approximately 62 miles (100 kilometers) above Earth.
The New Shepard Rocket flight, offering minutes of weightlessness, will be piloted.
Bezos’ fiancée, former broadcast journalist Lauren Sanchez, was also slated to be part of the NS-31 Mission. The couple’s wedding reportedly is set to take place in Venice this summer.
Another passenger is Aisha Bowe, a former NASA rocket scientist. Elle Magazine reported that she is the first person of Bahamian heritage to venture into space. Also onboard are film producer Kerianne Flynn and Amanda Nguyen, a research scientist at Bioastronauts and a prominent advocate for sexual assault survivors.
According to Blue Origin, Nguyen will be the first Vietnamese woman to travel to space.
“It’s a dream come true, and for me, it was a dream deferred,” Nguyen shared with Elle.
After studying astrophysics and working for NASA, Nguyen shifted her focus to activism following a traumatic event of sexual assault.
“Gender-based violence is a significant factor leading many women in STEM to discontinue their training. I was one of them,” she stated, referring to science, technology, engineering, and mathematics.
This marks the first space flight featuring an all-female crew since Valentina Tereshkova’s solo flight for the Soviet Union in 1963, making her the first woman in space.
However, there are critics questioning whether all-female crews truly represent moments of feminist progress. The New Shepard program, a cornerstone of Blue Origin’s Space Tourism Business, is seen as a venture for the wealthy and powerful to access space.
Actress Olivia Munn was criticized as being “somewhat tone-deaf” while appearing as a guest host on Today with Jenna and Hoda earlier this month.
“I know this isn’t fashionable, but there are so many other important issues in the world right now,” Munn remarked. “What exactly are you going to do in space?”
During an interview on CBS Morning with an interview aired on Friday, host Vladimir Dutier asked King if she had concerns that the flight may be seen as an advertisement for Amazon founder Bezos. Dutier highlighted the scrutiny Bezos faces due to Amazon’s business practices and ownership of The Washington Post.
Amazon warehouse workers and delivery drivers have raised concerns about unsafe working conditions. In 2023, the Federal Trade Commission and 17 states filed lawsuits against Amazon, alleging monopolistic practices in online retail.
The Washington Post has seen a wave of resignations in recent times amid concerns about leadership, notably Bezos redirecting the newspaper’s opinion section to advocate for “personal liberty and free markets.”
“I share those concerns as well,” King acknowledged. “There have been questionable decisions made.”
“But in this instance, Vlad, this is much larger than one individual and one company,” she continued. “I have chosen to separate the two.”
Bezos has invested billions in Blue Origin and envisions a future where humans inhabit space colonies. He was part of Blue Origin’s inaugural suborbital passenger flight in 2021.
The New Shepard Rocket is named in honor of Alan Shepard, the first American to journey into space in 1961 and one of the moon-walking astronauts.
Understanding the true nature of social media reveals that platforms like Facebook and Instagram are primarily profit-driven businesses that rely on advertising revenue. While we benefit from staying connected and entertained, we must also acknowledge the underlying business model.
Most users accept targeted ads as a trade-off for accessing online content. However, the issue arises when algorithms, rather than human decision-makers, dictate the ads we see. These automated systems are designed to prioritize clicks and sales, raising concerns about transparency and ethics.
A recent study highlighted the use of A/B tests by Facebook and Google to analyze user responses to different ad versions. Such experiments play a crucial role in marketing strategies, but the way they are conducted matters.
The problem lies in the lack of random assignment in these tests, as algorithms actively select users based on predicted engagement levels. This approach hinders advertisers from gaining genuine insights into effective ad strategies, relying instead on algorithmic optimization.
As of April 2025, Facebook has approximately 3.065 billion active users each month worldwide. Photo Credit: Getty
Advertisers may inadvertently target specific demographics, leading to unintended consequences like gender bias and political polarization. The complexity and accuracy of algorithms enable microtargeting at an individual level, shaping online experiences and influencing user behavior.
Implications for Users
Being online means being subject to constant experimentation by algorithms that determine content exposure. Users are unknowingly part of these experiments, where personalized messages influence thoughts, purchases, and beliefs.
It is crucial to recognize the impact of algorithmic decision-making on online experiences and be aware of the curated messages we receive. Transparency and accountability in digital platforms remain essential for fostering an informed online environment.
Expert Insights
Jan Cornil is an associate professor at the UBC Sauder School of Business in Canada, specializing in consumer behavior and marketing research. His work has been featured in top academic journals, emphasizing the importance of ethical marketing practices.
For some individuals, baldness may just be in their genetic destiny, as evidenced by the photo of Dwayne Johnson sporting curly hair. However, for millions dealing with hair loss due to genetics, aging, hormones, or medical conditions, recent discoveries may bring them closer to maintaining a full and lush scalp.
This progress is attributed to a new study published in the journal Natural Communication.
Researchers conducting the study used mice as subjects to delve into the mechanisms of hair follicle regeneration and the factors contributing to their demise.
In our bodies, all hair and the follicles under the skin go through cycles of growth, death, and rest. Key players in regulating the growth of new hair are hair follicular stem cells.
Hair follicles are naturally intended to die as part of the growth cycle. When they fail to regenerate, hair loss occurs. – Credit: Christopher Robbins via Getty
The study identified a protein called MCL-1 and conducted experiments to determine its function by turning it off and observing the effects on the mice.
“The researchers utilized advanced molecular biology tools to essentially remove proteins and examine the outcomes,” explained tissue engineering expert Professor Sheila McNeill, who was not part of the research team, as reported by BBC Science Focus.
By disabling MCL-1 in some mice from birth and in others after they had already lost some hair, scientists found that without MCL-1, new hair could not grow as hair follicle stem cells seemed to die off. This led to gradual hair loss in young mice and stalled growth in adult mice.
The findings suggested that MCL-1 plays a crucial role in protecting hair follicle stem cells, enabling new hair growth when old follicles die. Without this protein, hair follicles fail to regenerate.
McNeill emphasized that this study lays a solid foundation for further research, exploring whether individuals experiencing hair loss exhibit signs of MCL-1 damage and investigating ways to safeguard the protein to prevent hair loss.
However, cell biologist Professor Dorothy Bennett from St. George’s, University of London, cautioned that translating this research into a hair loss treatment presents significant challenges.
“MCL-1 is an intracellular protein, and intact proteins cannot easily penetrate cell membranes to reach their targets. Therefore, delivering MCL-1 through topical solutions or pills is unlikely to be effective,” Bennett explained.
Nevertheless, the study did identify a potential workaround through the activation of another protein, the epidermal growth factor receptor, which can boost MCL-1 levels. While this offers a promising alternative, Bennett stressed that developing such treatments presents numerous hurdles.
Read more:
About our experts:
Sheila McNeill: Professor Emeritus of Biomaterials and Tissue Engineering at the University of Sheffield, UK. McNeil specializes in tissue engineering for soft tissues and has a strong focus on research translation, with a vast publication record.
Dorothy Bennett: Research Professor in Cell Biology at St. George’s, University of London, UK. Bennett’s research interests include cell senescence, genetics of melanoma, and other pigmented skin conditions.
A South Carolina man admitted guilt on Thursday for bringing in and selling sperm whale teeth and bones from four countries in the United States, according to federal prosecutors.
Lauren H. Deloha, 69, of St. Helena, South Carolina, pleaded guilty to violating the Lacy Act and the Marine Mammal Protection Act by importing and selling sperm whale parts. The US Attorney’s Office in South Carolina reported this.
Deloach is said to have imported sperm teeth and bones into South Carolina from July 2022 to September 2024, including at least 30 shipments from Australia, Latvia, Norway, and Ukraine, as revealed in court documents and statements made in court.
He allegedly sold around $18,000 worth of at least 85 pieces on eBay, falsely labeling them as “plastic” to evade detection by customs officials, according to prosecutors.
Authorities mentioned that they confiscated about $20,000 worth of sperm whale parts while searching his residence.
It remains unclear how Deloach acquired these items and who purchased them from him. Teeth and bones are sought after for use in artworks like sculptures, prosecutors stated.
Sperm whales, the largest toothed whales, inhabit deep waters worldwide, from the equator to the edges of ice in the Arctic and Antarctic, according to the National Oceanic and Atmospheric Administration. Females can grow up to 40 feet long, while males can reach up to 52 feet long, as per the agency.
Sperm whales have been safeguarded since 1970 under the Endangered Species Act and the International Treaty on Endangered Species of Wild Fauna and Flora. The Lacey Act criminalizes the illegal sale of wildlife that was imported illegally, prosecutors mentioned.
“Illegal wildlife trafficking is a multi-billion dollar global enterprise, with animals and fuels protecting organized crime,” stated Brooke B. Andrews, acting US attorney for South Carolina. “We will uphold the Lacey Act and the Marine Mammal Protection Act. Vulnerable species like sperm whales have been slaughtered for profit.”
Deloach’s attorney, Nathan S. Williams, mentioned in a statement on Sunday that Deloach “regretted his actions and took responsibility for them.”
Deloha faces a maximum of five years in prison, a $250,000 fine for felony Lacey Act violations, and up to one year in prison for misdemeanor violations of the Marine Mammal Protection Act.
This incident was the latest involving protected wildlife.
In February, a California couple reached a plea agreement in Butte County, California. They were caught by wildlife officers smuggling mountain lion trophies and turtle skulls in their carry-on bags, breaching fish and game laws. The California Department of Fish and Wildlife stated.
If you are reading this, chances are you believe you are conscious. It’s easy to assume that your loved ones, your not-so-loved ones, and even your peculiar neighbors are also conscious beings, experiencing the world just like you.
But what about newborn babies, who are unable to communicate their thoughts or understand the world around them? None of us can remember our experiences as infants, so the question remains: are they aware? What about babies still in the womb?
These intriguing questions have captured the interest of neuroscientists, including Dr. Joel Frolich, who describes this inquiry as a scientific “frontier.”
According to Frolich, there has been limited research on the onset of consciousness until recent years. It was predominantly a topic for philosophers, with neuroscience only starting to delve into it more recently.
Researchers have now devised innovative methods to uncover when consciousness emerges in a newborn or a fetus and explore these unanswered questions.
Quest for Clues
Based on a study by Frolich and philosopher Professor Tim Bain, the consensus seems to point towards at least five months before consciousness likely emerges.
By this age, the infant not only displays wakefulness but also exhibits clear signs of engaging with the world around them.
This conclusion stems from a “cluster-based” approach, where a combination of indicators like brain activity patterns, responses to stimuli, and signs of recognition are considered, rather than relying on a single marker of consciousness.
While younger babies may not exhibit all the signs of consciousness, they show some indicators, which can also be present in fetuses.
At five months old, neuroscientists identified clusters of markers suggesting consciousness – credit: Anuti via Getty
Key to Consciousness
One significant marker of a conscious brain, according to neuroscientists like Frolich, is the default mode network. This network of brain regions is active during restful states, such as daydreaming or contemplating the future.
Research using functional magnetic resonance imaging (MRI) has shown that newborns have a rudimentary form of this default mode network.
Another crucial clue is the local-global effect, where the brain’s ability to detect pattern changes signifies working memory and potential consciousness. This was evident in studies on infants and even in fetuses.
Scanning the fetus can be difficult due to all the tissue that the scanning device needs to pass through to reach the uterus. Ultrasound uses sound waves, and magnetic EEG uses magnetic fields. – Credit: Half Point Image via Getty
Unveiling the Womb
Behavior and attention are additional factors that hint at consciousness. Young babies around four months old demonstrate the ability to choose where to focus their attention, suggesting a level of awareness. Similar observations have been made with fetuses.
In a 2017 study, neuroscientists conducted experiments on pregnant individuals, illuminating the uterus with lights and gauging fetal responses using ultrasound.
These findings shed light on the potential emergence of awareness in infants or fetuses, prompting contemplation on ethical implications but reassuring that consciousness likely isn’t present until later in pregnancy.
Neuroscientific discoveries may have broader implications for understanding consciousness in other entities, such as artificial intelligence, urging the development of a unified theory of consciousness.
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About our experts:
Dr. Joel Frolich: A postdoctoral researcher specializing in fetal neuroscience at the Helmholtz Centre Munich, University of Tubingen. Frolich utilizes magnetic enemies for studying fetal and infant development and serves as a research consultant for the Institute for Advanced Consciousness in California.
Heart failure affects over 60 million people worldwide, where the heart is unable to properly pump blood due to a weak or stiff heart. Typical causes include coronary heart disease, hypertension, and obesity. However, new research published in the journal heart shows that hearing loss is also linked to an increased risk of heart failure.
Heart failure doesn’t mean the heart stops working completely, but rather needs extra support to function. The study, which evaluated data from over 160,000 people from the UK biobank, found that individuals with hearing loss had a higher risk of developing heart failure over a 5-year follow-up period compared to those with normal hearing.
The study also revealed that individuals with inadequate hearing had a 15% higher risk, while those with inadequate hearing had a 28% higher risk of heart failure. Higher scores on the Audio Reception Threshold test were also associated with a higher risk of heart failure. These findings suggest that hearing health should be considered in cardiovascular risk assessment and prevention strategies.
According to the World Health Organization, 25% of people over 60 suffer from varying levels of hearing loss.
Research suggests that untreated hearing loss can lead to social isolation, psychological distress, and neurosis, all of which increase the risk of heart failure. The study authors also point out biological links between hearing loss and heart problems, emphasizing the importance of addressing hearing health in cardiovascular risk management.
Overall, while hearing loss may be considered a normal part of aging, it may actually indicate underlying issues that can impact heart health. It’s essential to consider hearing health in relation to overall cardiovascular health to reduce the risk of heart failure.
For those who are not runners and don’t find the appeal of a two-hour run at 6am, it’s known that running (and other forms of aerobic exercise) can create powerful chemical sensations that are comparable to real drugs.
The body naturally produces two pleasurable substances associated with the runner’s high. Endorphins are well-known neurotransmitters that can be likened to morphine for their pain-relieving properties.
One theory suggests that our ancestors evolved to produce endorphins to help them chase prey or escape predators by numbing foot pain and blisters.
Research indicates that for runners, a long-term, moderately intense run is the ideal scenario for endorphin production. If you’re aiming to experience the runner’s high, try a “tempo” run.
After a good warm-up, aim to run for at least 20 minutes at a pace of about 6 or7 out of 10 (with 10 being an all-out sprint).
Running can produce powerful chemical hits that justify comparisons with real drugs – Illustration Credit: James Clapham
While endorphins have traditionally been credited with causing the euphoria of the runner’s high, recent research suggests that another substance may be the actual source of the uplift felt towards the end of a run.
Endocannabinoids are molecules similar to those in marijuana that enhance the mood, but are naturally produced by the body.
Research shows that when cannabinoid receptors are blocked in mice, they exhibit reduced activity. In a study in 2021, researchers at the University Medical Center Hamburg Eppendorf found that even when the opioid receptor that binds to endorphins is blocked, runners still experience the high.
This suggests that cannabinoids may be more responsible for the runner’s high than previously thought.
In the study, participants ran at a moderate pace for 45 minutes. To achieve a similar high, aim for a consistently challenging pace where holding a conversation becomes difficult.
This article addresses the question (posed by Emily Marine of Colchester) “When does the runner’s high kick in?”
Please email us with your questions atQuestion @sciencefocus.com or message us onFacebook,Twitter, or on ourInstagrampage (don’t forget to include your name and location).
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Dr. Clifford attempted to explain the challenges of owning an octopus in his post. He faced high costs, sleep deprivation, and significant water damage to his home, which necessitated extensive renovations. He mentioned, “I didn’t want to form a permanent or romantic attachment to my baby while still caring for it.”
Despite his efforts, he was inundated with requests to adopt the hatching octopuses.
Vincent Nyman, a wildlife trade expert at Oxford Brooks University, who researched the impact of social media on the exotic pet trade, stated, “If you showcase it, people will want it. And if you advise against getting it, it’s like saying ‘Don’t do this,’ right?”
Life-saving
Nevertheless, Dr. Clifford ultimately decided that he could not send the baby octopuses to private homes. Instead, he arranged for them to be placed in a reputable aquarium or university once they were healthy enough. On April 21st, he made an announcement that he had found homes for all the hatching.
The following day, one of the hatching octopuses, Terrance, passed away and was buried in the backyard beside trees whose trunks resembled octopus tentacles.
Now, the priority was to keep the baby octopuses alive until they could be relocated to their new homes. The odds were stacked against them, as only a small percentage typically survives in the wild.
Dr. Clifford shared that approximately 20 hatching octopuses died within the first month alone, due to factors like cannibalism and power outages.
The pressure to ensure the survival of the baby octopuses weighed heavily on Dr. Clifford, especially with a large and invested audience following his journey.
A local reptile expert and breeder who had become a friend to Dr. Clifford stepped in to help care for and house a baby octopus while Dr. Clifford’s home underwent renovations. Despite their collaborative efforts, the hatching octopuses continued to perish.
At a Senate confirmation hearing to become Health Secretary, Robert F. Kennedy Jr. presented himself as a vaccine advocate. But he, and the agency he leads, have taken widespread, sometimes subtle steps to undermine confidence in the effectiveness and safety of the vaccine.
National Institutes of Health I stopped the funds For researchers who wanted to study vaccine hesitancy and find ways to overcome it. They also cancelled a program aimed at discovering new vaccines to prevent future pandemics.
The Centers for Disease Control and Prevention shelved an advertising campaign for influenza shots. Kennedy inaccurately says that scientists advising the CDC on vaccines have it “Serious, serious conflict of interest” Advertising your product means you can’t trust it.
Ministry of Health and WelfareIt cuts billions of dollars to state health agencies, including the funds needed to modernize state programs for childhood immunization. Kennedy said in a televised interview Wednesday that he was unaware of the widely reported development.
The Food and Drug Administration canceled a public meeting with its scientific advisor on the flu vaccine and later kept it behind closed doors. a Top Official Pause Agency Reviews Novavax Covid Vaccine. In a TV interview last week, Kennedy mistakenly stated that a similarly created vaccine would not work against the respiratory virus.
Some scientists say they saw the pattern: efforts to erode support for everyday vaccination, and scientists who have long maintained it as a public health goal.
“It’s a simultaneous process that increases the likelihood of hearing him and reducing the likelihood of hearing other voices,” said Kathleen Hall Jamieson, director of the Annenberg Public Policy Center, of Kennedy.
He “recognizes the voices of other authorities,” she said.
The HHS opposed Mr Kennedy’s opposition to the vaccine.
“Secretary Kennedy is not an anti-vaccine, he’s safe,” department spokesman Andrew Nixon said in a statement. “His focus has always been to ensure that the vaccines were rigorously tested for efficacy and safety.”
A bowl of warm pasta, a fluffy white bread roll, or a bag of generously salted chips – these starchy delights are like dreams. No wonder many of us couldn’t imagine giving up carbs forever.
But according to Research by the University of Surrey, spending just one day without carbohydrates has a similar effect on the body as intermittent fasting.
Intermittent fasting, also known as time-limited feeding, involves alternating normal feeding periods with significantly reduced calorie intake periods. These fasting windows can be scheduled at specific times each day or throughout the week.
While this approach has various health benefits, consuming less than 800 calories a day, as recommended on the popular 5:2 diet, can be challenging for some individuals.
However, this new study suggests that reducing calories significantly on fasting days may not be necessary. Simply cutting out carbohydrates can provide similar fat-burning benefits.
“What we’re interested in is not necessarily weight loss, but the metabolic effect of this dietary intervention,” said Dr. Adam Collins, the study co-author and an associate professor of nutrition at the University of Surrey, in an interview with BBC Science Focus.
The study, which aimed to investigate the effects of carbohydrates on metabolic health, involved 12 overweight or obese adults aged 20 to 65.
Participants followed three different meal plans with five-day breaks between each diet day for 36 hours (one day and two nights of sleep). The meal plans included a normal meal, a low-carb diet with the same calorie intake as a regular diet, and a low-carb diet with reduced calories.
Results showed that consuming a low-carb diet, regardless of calorie intake, encouraged the body to burn fat for energy similar to a fasting diet.
Carbohydrates include starches such as potatoes and pasta, grains such as rice and oats, baked goods such as bread and pastries, fiber foods such as vegetables and fruits, and sugar confectionery such as sweets and chocolate.
Dr. Collins explained that the body is designed to use carbohydrates for energy after meals and fats between meals and overnight. Consuming carbs too frequently can lead to poor management of metabolism.
Intermittent fasting or reducing carbohydrate intake helps the body reset and start burning fat for energy. Dr. Collins also emphasized that while restricting carbs long-term may hinder glucose processing, alternating low-carb days with regular meal days can be a sustainable and beneficial approach for metabolic health.
He concluded by saying, “Food is not a sin. Carbs aren’t bad. Fats aren’t bad. It’s all about moderation.”
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About our experts:
Dr. Adam Collins: An associate professor of nutrition at the University of Surrey’s School of Biological Sciences. With over 20 years of experience as a qualified nutritionist, he leads BSC and MSC nutrition programs at Sally. His current research focuses on exercise intensity, energy balance, intermittent fasting, dietary timing and composition, and carbohydrate manipulation for metabolic health.
Two recent epic astronomical discoveries may seem unrelated at first glance.
One is an image captured by the James Webb Space Telescope showing newborn stars in our galaxy, approximately 450 light years away. This incredible picture depicts the birth of the solar system with thin dust discs slowly forming.
The other discovery combines optical and wireless data to reveal a massive astrophysical system larger than the Milky Way. This discovery provides a glimpse into the intergalactic violence caused by supermassive black holes actively consuming their surroundings.
Despite their differences, a striking similarity can be observed between the two discoveries. Both display objects emitting long, straight jets of light or material into the universe, resembling double-sided lightsabers.
Discovered by JWST, the HH 30 is a primitive disk illuminated with a newborn star in the center, expelling a jet of gas and dust. Approximately 450 light years away from the Taurus Molecular Cloud – Photo Credits: ESA/Webb, NASA & CSA, Tazaki et al
Astrophysical jets are a common phenomenon in space, driven by the basic features of gravity, rotation, and magnetic fields.
The formation of discs in space involves a few simple steps driven by gravity and rotation. Material is attracted towards an object creating discs like spiral galaxies, protoplanetary discs, and accretion discs around black holes.
Gravity and rotation explain the formation of these discs, while magnetic fields play a crucial role in the generation of jets. Charged particles in space generate magnetic fields when in motion, leading to the creation of long, straight jets perpendicular to the disc plane.
Using wireless and optical data, astronomers discovered this huge astrophysical jet. This extends farther than the Milky Way – lofar/decals/desi regacy imaging surveys/lbnl/doe/ctio/noirlab/nsf/auraImage Processing: m zamani (nsf noirlab).
These jets vary in strength and size depending on the magnetic field and rotation that drives them. From protostars to supermassive black holes, jets can extend vast distances into space, showcasing the extreme power of gravity and magnetic forces in the universe.
Astrophysical jets provide a mesmerizing insight into the mechanisms driving the most extreme wonders of the universe, from stars being devoured by black holes to pulsars emitting light across space.
In these turbulent times, there is a growing interest in cryonics as a way to freeze and preserve human remains for potential revival in the future when medical technology is more advanced.
The concept is intriguing – it’s like a savepoint in a video game where you can “undo” your life experiences and start anew when revived.
Despite the increasing enthusiasm for cryonics, there are significant challenges that need to be addressed before it can be considered a viable option.
Freezing Limitations
Freezing living organisms at ultra-low temperatures often results in irreparable damage, leading to death. The human body, being primarily composed of water, cannot withstand the formation of ice crystals that can cause extensive harm to cells and tissues.
While anti-freeze agents can help mitigate this damage at a cellular level, the complexity of the human body poses a greater challenge when trying to freeze it effectively.
Freezing the human body for cryonics often causes irreversible cell damage, especially in the brain, making revival virtually impossible with current technology. – Photo credit: Getty
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Freezing and thawing the human brain poses a particularly daunting task due to the complexity and vulnerability of brain cells. Neurons, being highly energy-dependent and structurally intricate, are difficult to preserve and repair through cryogenic processes.
Challenges with Brain Preservation
Many proponents of cryonics opt to freeze only the head or brain under the assumption that advancements in medicine can facilitate the replacement of the rest of the body. However, reanimating a frozen brain presents significant hurdles.
Neurons, the building blocks of brain function, are fragile and sensitive to damage. The intricate connections between neurons, which form the basis of memories and identity, are easily disrupted during the freezing process, making reconstruction a monumental task.
Even if future technologies can restore neuronal connections, the complexity of mapping these connections accurately without prior brain scans poses a significant challenge.
Ultimately, while cryonics offers hope for the future, it also requires a substantial amount of optimism given the current limitations and uncertainties surrounding the process.
The little Magellan Clouds (SMCs), a dwarf galaxy that is orbiting near our own Milky Way, appear to satisfy a rather dramatic ending.
That is the conclusion of a new study published in Astrophysical Journal Supplement Series astronomers have tracked over 7,000 large stars in SMC. Each one is more than eight times the size of our sun.
These star heavyweights burn a short life that lives bright and fast, providing clues about their own movements as well as their turbulent gas clouds.
And what researchers found was impressive. This former codbone universe’s neighbor is torn apart quite badly by the gravity of the large Magellan Cloud (LMC).
The milky stripes of this star-filled sky are two d-star galaxies visible only from the southern hemisphere – here is a small Magellan cloud photographed above the Delusional Observatory of Eso in Chile. -ESO/j. Corosimo
“SMCs are interacting galaxies that are coupled to the LMC by gravity.” Satoya Nakano the first author of the study said BBC Science Focus. “The stars on the side of the SMC near the LMC experience stronger gravity and are moving towards the LMC, but the stars experience even weaker pulls.”
This gravitational tug of war slowly pulls the SMC apart with possible nudges from our own Milky Way approaching about 200,000 light years away.
So why is this important?
For one, the team discovered that the SMC was not rotating the way astronomers had assumed. Spiral galaxies like our own usually rotate with stars and gas processing around the central axis. But not all galaxies are – and SMC may be one of them.
“The question of when rotational motion appears in galaxies is a very interesting topic among researchers,” Nakano said.
“SMC was considered a rotating galaxy, but this study shows that it is not actually rotating. It suggests that if even a nearby galaxy like SMC is misinterpreted, it requires much more attention when assessing galaxy rotations further away.”
The colours of the arrows represent the direction of the movement of the giant stars in the SMC. Compared to the LMC at the bottom left of the image, most red arrows show movement towards the LMC, while most light blue arrows show movement away from the LMC, suggesting that they are being pulled apart. – Satoya Nakano
And SMC is very close by space standards. Just 200,000 light years away, it is more than ten times closer to Andromeda, the nearest largest galaxy.
The lack of rotation not only changes our understanding of SMC’s structure, but also allows us to discard estimates of mass.
“The SMC is not rotating, so historical estimates of its mass may be incorrect.” Professor Tahara the author of another study said BBC Science Focus.
“The estimates of mass were born from previously estimated rotational motions. However, if these are not reliable, the estimates need to be revised. Without this, we cannot predict the future existence of SMC.”
Nakano and Tahara hope that detailed simulation observations to model the fate of the galaxy open the door. But for now, the future appears to be far from bright.
About our experts
Satoya Nakano is a doctoral candidate from the Faculty of Physics, Graduate School of Science, Nagoya University, Japan.
Tahara Sword He is an associate professor at Nagoya University Graduate School of Science, Japan. His research is Publications of the Japanese Astronomical Association, Astrophysical Journal and Astronomy and Astrophysics.
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How do you know that the Milky Way is a spiral galaxy?
Ah, the circle of life! Your parents engage in intimate activities, and nine months later, you make your grand entrance into the world (apologies for that mental image).
However, did you know that the temperature during your parents’ romantic encounters could impact your metabolism for the long haul?
According to recent research conducted by a researcher at the University of Tokyo in Japan, this might be the case.
The study analyzed the season when 642 Japanese adults were conceived and discovered that individuals conceived during colder months tend to have lower body mass index (BMI), less visceral (abdominal) fat, and a faster metabolism compared to those conceived in warmer months.
This correlation is linked to brown fat, a type of fat that burns energy even at rest, helps keep the body warm, and assists in regulating blood sugar levels.
“People conceived during colder seasons tend to have more active brown fat as adults,” explained Takeshi Yoneshiro, an associate professor at Tohoku University Graduate School of Medicine, in an interview with BBC Science Focus.
Having more active brown fat means the body burns more energy while resting, potentially resulting in a faster metabolism compared to individuals with lower levels of brown fat.
Our bodies utilize white fat for calorie storage, but brown fat is essential for maintaining warmth. – Credit: nopparit via Getty
Professor Jaswinder Sethi, an expert in immuno-metabolism at the University of Southampton who was not involved in the research, stated to BBC Science Focus: “Brown fat’s primary role is to produce heat and maintain body temperature.
“Moreover, brown fat activity significantly contributes to energy expenditure, aiding in reducing the need for storage and potentially preventing the risk of obesity and metabolic disorders.”
Yoneshiro suggested that parental exposure to cold temperatures could lead to epigenetic modifications, influencing how our genes are expressed.
“In modern times, this metabolic system may help regulate energy balance and protect against metabolic diseases by acting as a heater and air conditioner,” Yoneshiro explained.
However, Sethi cautioned: “It’s crucial to note that, similar to many known genetic variations associated with obesity, these changes are not the sole contributors to future health issues, as individuals may have genetic predispositions affecting their metabolism.”
Additionally, Dr. Adam Collins, an Associate Professor of Nutrition at the University of Surrey not involved in the study, stated to BBC Science Focus that the significance of brown fat in metabolic regulation may be overemphasized.
“Having abundant brown fat might not necessarily equate to a higher metabolic rate,” Collins noted. “The benefit of brown fat lies in its ability to generate heat, particularly in cold conditions, rather than simply burning calories.”
Since this study is observational, it cannot definitively prove that the season of conception impacts a child’s metabolism in the long term.
Nonetheless, Yoneshiro expressed hope: “If other factors can reproduce this effect, targeted interventions may be developed to enhance metabolic resilience in future generations.”
Read more:
About our experts:
Dr. Takeshi Yoneshiro is an associate professor of biomedical sciences specializing in molecular physiology and metabolism at Tohoku University’s Graduate School of Medicine. Prior to joining Tohoku University in 2023, he served as an associate professor at the Center for Advanced Science and Technology Research at the University of Tokyo.
Jaswinder Sethi is a professor of immunotherapy at the University of Southampton. She is also an Honorary NHS Foundation Trust Research Fellow and a member of the Life Sciences Institute. Her research focuses on immune metabolism, obesity, metabolic diseases, and tissue remodeling.
Dr. Adam Collins is an Associate Professor of Nutrition at the School of Biological Sciences, University of Surrey. With over 20 years of experience as a qualified nutritionist, he leads BSc and MSc nutrition programs at the university. His research includes studying exercise intensity and energy balance, intermittent fasting, dietary composition and timing, and carbohydrate manipulation for metabolic health.
At present, there are around 13,000 satellites orbiting Earth, with roughly 10,000 of them functioning. However, the number of satellites in orbit is set to increase drastically by 2030, with 50,000 new satellites expected to be launched.
This significant increase is primarily due to the rise of Internet megaconstellations like SpaceX’s Starlink and other satellite projects. Currently, there are approximately 8,000 satellites in low Earth orbit, with nearly 6,500 of them being Starlink satellites.
SpaceX plans to deploy 12,000 satellites and is seeking approval for an additional 30,000, while other companies, like Amazon, are also planning their own megaconstellations.
The influx of satellites in low Earth orbit raises concerns about potential collisions and environmental impacts. Scientists warn that megaconstellations could harm the ozone layer, which protects the planet from harmful UV rays.
When satellites are decommissioned, they re-enter the Earth’s atmosphere and release aluminum oxide particles, which can damage the ozone layer by catalyzing chemical reactions. These particles can linger in the atmosphere for decades, further depleting the ozone.
Research published in the Geophysical Research Journal in 2024 revealed that a single satellite can release a significant amount of aluminum oxide particles, which can accumulate over time and contribute to ozone depletion.
The continuous deployment of megaconstellations could inject large amounts of aluminum oxide into the upper atmosphere every year, significantly increasing the risk of ozone layer damage.
The short lifespan of internet satellites in low Earth orbit poses additional challenges, as they need to be actively removed or they will burn up in the atmosphere. SpaceX’s Starlink satellites, for example, could be pulled out of orbit within five years if not removed.
The constant re-entry of decommissioned satellites could release a stream of burnt-out material into the atmosphere, exacerbating the environmental impact. Scientists predict a significant increase in satellite re-entries in the coming years, which could further impact the ozone layer.
It may take several decades before the full extent of satellite re-entry impacts the ozone layer, but the rapid growth of megaconstellations poses a significant risk to ozone layer recovery efforts.
Future research collaborations are being formed to study the direct link between decommissioned satellites and ozone depletion, aiming to quantify the environmental risks associated with satellite combustion.
This article addresses the query posed by Claudine Best from Dorset: “Do satellites burning in the atmosphere pose a threat to the environment?”
To submit your questions, please email Question@sciencefocus.com or message us on Facebook, Twitter, or Instagram (don’t forget to include your name and location).
Explore more fascinating science topics on our website for fun facts and insights.
Fast cars are more than just a means of transportation for some people. While many see them as a practical way to get from point A to point B, others view them as a source of exhilaration and excitement. These supercars are designed to deliver top-notch performance and a thrilling driving experience that leaves a lasting impression.
For those who seek the thrill that comes with speed, there are a variety of supercars on the market that cater to this desire. Despite the growing popularity of electric cars, the supercar segment continues to thrive, offering enthusiasts the chance to own some of the fastest cars in the world.
If you have the means to afford one of these high-performance vehicles, you can experience the exhilaration of driving the fastest supercars available today.
Ferrari SF90 XX Stradale
The Ferrari SF90 XX Stradale is on the track. Photo by Ferrari
When you mention the word “supercar,” Ferrari is often the first brand that comes to mind. The SF90 XX Stradale exemplifies Ferrari’s commitment to pushing the boundaries of performance. With a 4-liter V8 engine and three electric motors, this car delivers unmatched power and agility, making it a force to be reckoned with on both the track and the road.
With nearly 1,000 brake horsepower at your disposal, the SF90 XX Stradale offers a driving experience like no other. Whether you’re cruising on public roads or pushing the limits on the track, this Ferrari is sure to leave you breathless.
McLaren Sols GT
Former Formula One driver, Mika Heckinen drives the Sols GT at the Goodwood Festival of Speed 2022. Photo: McLaren/News Press
McLaren, known for its prowess in Formula One racing, brings that same level of engineering excellence to its road cars. The Solus GT is a testament to McLaren’s commitment to performance and innovation, featuring a single-seat layout and a powerful V10 engine that harkens back to the glory days of Formula One.
With only 25 units produced, the Solus GT is a rare gem that offers a blend of track-inspired performance and everyday drivability. If you’re fortunate enough to get behind the wheel of this McLaren masterpiece, you’re in for a treat.
Lamborghini Jaracan Performante
Lamborghini Jaracan Performante painted on London Street. Photo: Lamborghini/Newspress
The Lamborghini Jaracan Performante may not be a household name, but it’s a supercar that packs a punch. With a mid-engine, all-wheel-drive setup, this car can go from 0-100 km/h in just 2.5 seconds and reach a top speed of 328 km/h.
Known for its signature Lamborghini roar, the Jaracan Performante offers a thrilling driving experience that is sure to turn heads wherever you go. If you’re in the market for a high-performance supercar with Italian flair, the Lamborghini Jaracan Performante is worth considering.
Aston Martin Valkyrie
Aston Martin Valkyrie blows up around Bahrain’s desert racetracks. Photo: Drew Gibson/News Press
As the car of choice for James Bond, the Aston Martin Valkyrie embodies British engineering at its finest. Designed in collaboration with Red Bull Racing Advanced Technology, this hybrid supercar offers a blend of performance and functionality that is unrivaled.
Featuring a 6.5-liter V12 engine coupled with a hybrid motor, the Valkyrie delivers a staggering 1,160 brake horsepower, propelling it from 0-100 km/h in just 2.6 seconds and reaching a top speed of approximately 356 km/h. With only 275 units produced, the Aston Martin Valkyrie is a rare gem that offers a truly unforgettable driving experience.
Pagani Utopia
Pagani Utopia Roadster painted in the studio. Photo: Pagani
With a legacy of producing stunning and high-performance cars like the Zonda and Huayra, Pagani has established itself as a prominent player in the supercar market. The Utopia is the latest offering from the Italian manufacturer, boasting a powerful engine built by Mercedes AMG.
With 852 brake horsepower at your disposal, the Utopia can go from 0-100 km/h in just 3 seconds and reach a top speed of 350 km/h. With only 229 units produced, this exclusive supercar comes with a hefty price tag, making it a dream for collectors and enthusiasts alike.
Mercedes AMG 1
Mercedes AMG depicts a photo of him driving around a Nurburgring racetrack in Germany. Photo by Mercedes-Amg
The Mercedes AMG One is a limited-edition hybrid supercar that brings Formula 1 technology to the road. Featuring a 1.6-liter V6 engine from a 2016 Mercedes Formula 1 car, this high-performance machine delivers a top speed of 352 km/h and can go from 0-100 km/h in just 2.9 seconds.
With only 275 units produced, the Mercedes AMG One combines the best of both worlds, offering unmatched performance and cutting-edge technology in a road-ready package. If you’re a fan of Formula 1 racing and high-performance vehicles, the AMG One is sure to impress.
Pininfarina Battista
Pininfarina Battista shows cornering capabilities on roads in California, USA. Photo by Pininfarina
Named after the founder of Pininfarina, the Battista is a true powerhouse on wheels. With four electric motors providing unparalleled performance, this Italian supercar can go from 0-100 km/h in less than 2 seconds and reach speeds exceeding 300 km/h in just 11 seconds.
With only 229 units produced, the Pininfarina Battista is a rare gem that combines Italian craftsmanship with cutting-edge technology. If you’re in the market for a high-performance supercar that stands out from the crowd, the Battista is worth a closer look.
Rimack Neverra
Rimac Nevera takes him to the truck. Photo by Rimac
The Rimac Nevera is an all-electric supercar that has set new records for electric vehicles. With a motor on each wheel and a unique aerodynamic design, this Croatian supercar offers unmatched performance and agility.
The Nevera holds the title of the fastest electric production vehicle ever built, with the ability to accelerate from 0-100 km/h in just 1.81 seconds. With a top speed of over 400 km/h, the Rimac Nevera is a game-changer in the world of electric supercars.
Aspark Owl
The Aspark owl can be seen at the salon plybe at Brenheim Palace, England. Every year some of the world’s rarest cars are displayed on the lawns of the palace. Photo: Martyn Lucy/Getty Images
The Aspark Owl is a high-performance electric supercar that offers unmatched speed and agility. With four powerful electric motors, this Japanese supercar can accelerate from 0-100 km/h in less than 2 seconds, making it one of the fastest cars on the road.
With a range of 400 km on a full charge and a top speed of 438.7 km/h, the Aspark Owl is a true powerhouse that combines cutting-edge technology with stunning design. If you’re in the market for a high-performance electric supercar, the Owl is a top contender.
Bugattichiron Super Sports
Bugatticilon Supersport is heading towards the road at Goodwood Festival of Speed. Photo by Tim Scott/Bugatti
Bugatti is a name synonymous with speed and luxury, and the Chiron Super Sports is no exception. With a massive engine and four turbochargers, this French supercar is capable of reaching speeds exceeding 490 km/h, making it one of the fastest cars in the world.
While it may not accelerate as quickly as some electric vehicles, the Bugatti Chiron Super Sports offers a blend of power and refinement that is sure to impress. Whether you’re cruising down the highway or tearing up the track, this supercar is a force to be reckoned with.
Hennessy Venom F5
The beautiful Hennessy Venom F5 looks moody and green. Photo by Hennessy
The Hennessy Venom F5 is an American supercar that offers unparalleled performance and speed. With a twin-turbo V8 engine developed by Hennessy, this high-performance machine can go from 0-100 km/h in just 3.3 seconds.
In 2024, the Venom F5 set a new world record for the fastest 1/2 mile run, showcasing its raw power and agility. With a focus on driver comfort and performance, this supercar offers a thrilling driving experience that is sure to leave a lasting impression.
Koenigsegg Jesko Absolut
Koenigsegg Jesko Absolut is taking him to the truck at the Goodwood Festival of Speed 2022 in Chichester, UK. Photo: Martyn Lucy/Getty Images
The Koenigsegg Jesko Absolut is the pinnacle of engineering excellence, offering unmatched performance and speed. With over 3,000 hours spent on aerodynamic improvements, this Swedish supercar is capable of reaching speeds well over 530 km/h.
Powered by a twin-turbo V8 engine and a nine-speed gearbox, the Jesko Absolut set a new world record for the fastest 0-400 km/h run in under 28 seconds. With a focus on performance and comfort, this supercar offers a driving experience like no other.
SSC Tuara
The SSC Tuatara is potentially the fastest production vehicle in the world. Photo by SSC
The SSC Tuara is a supercar that has set new speed records, earning the title of the fastest production vehicle in the world. With a high-revving V8 engine and over 1,300 brake horsepower, this American supercar is a force to be reckoned with.
With active aerodynamics and a low drag coefficient, the Tuatara is designed for speed and agility. Capable of reaching speeds exceeding 532 km/h, this supercar is a true testament to American engineering ingenuity. If you’re in search of uncompromising performance and speed, the SSC Tuara is the ultimate choice.
Officially named Kohoutek 4-55, this little-known planetary nebula is located within our Milky Way galaxy.
This Hubble image shows Kohoutek 4-55, a nebula of planets 4,600 light years away in the Cygnus constellation. Image credits: NASA/ESA/Hubble/K. Noll.
“The Nebula of Planets is a spectacular final exhibition at the end of the life of a giant star,” Hubble Astherm said in a statement.
“When the giant red star runs out of available fuel and flows the final gas layer, its compact core shrinks further, allowing for a final burst of fusion.”
“The exposed core reaches very high temperatures and emits very energetic UV rays, activating a huge cloud of casting gas.”
“Molecules in the gas are ionized and brighten.”
“Here, red and orange represent nitrogen molecules, green represent hydrogen, and blue represent nebulae oxygen.”
Kohoutek 4-55 is located approximately 4,600 light years away from the Cygnus constellation.
Also known as UHA 15 or G084.2+01.0, this nebula has an unusual multilayered form.
“The bright inner ring of the Kohoutek 4-55 is surrounded by a loose layer of gas, all wrapped in a wide halo of ionized nitrogen,” the astronomer said.
“The view is bittersweet. The short phase of the fusion of the cores ends tens of thousands of years, leaving behind a white dwarf who will never illuminate the surrounding clouds again.”
This image of Kohoutek 4-55 was captured by Hubble’s Widefield and Planetary Camera 2 (WFPC2).
“Installed in 1993 to replace the original Widefield and Planetary Camera (WFPC), WFPC2 was responsible for some of Hubble’s most persistent images and fascinating discoveries,” the researchers said.
“It was replaced in 2009 by Widefield Camera 3 (WFC3) during Hubble’s final service mission.”
“The data in this image was collected 10 days before the instrument was removed from the telescope, as a proper postponement for WFPC2,” he said.
“The latest and most advanced processing techniques are used to bring data to life once more, creating this breathtaking new view of Kohoutek 4-55.”
Using the 88-inch cyclotron from the Lawrence Berkeley National Laboratory, an international team of physicists successfully created two atoms Rivermorium (Atomic Symbol LV) A breakthrough in which the lab tries to create a new element 120, using titanium beams for the first time.
Rivermorium, make a gate et al. A fusion isotopes of titanium and plutonium. Image credits: Jennius, Lawrence Berkeley National Laboratory.
Currently there are 118 known elements, 90 of which occur naturally on Earth.
Heavy elements than fermium (with 100 protons) must be created by combining the nuclei of two lighter elements, but not all combinations work.
The heaviest, currently known element was created by fusing a specific isotope of calcium, calcium-48 (containing 20 protons and 28 neutrons), with a heavier element, but this method works only up to element 118 (Oganesson).
The number of special (so-called magic) protons and neutrons makes it more possible to fusion of calcium and the survival of the nucleus of the resulting compounds.
But to go further, scientists need new techniques.
In the new experiment, Lawrence Berkeley National Laboratory and her colleague Dr. Jacklyn Gates made a major breakthrough by accelerating a beam of titanium-50 (containing 22 protons and 28 neutrons) with an 88-inch cyclotron, dissolving it with the nucleus of plutonium-244 (containing 94 protons and 150 diseases) and titanium nucleus.
Over 22 days, physicists successfully produced two atoms of rivermorium, the chemical element with symbol LV and atomic number 116.
This experiment shows that new elements other than Oganesson can be created in the Berkeley Lab.
However, creating element 120 is expected to be 10-20 times more difficult than Livermorium.
If successful, element 120 is the heaviest known element, offering a new opportunity to explore the outermost limits of atomic structures and further test theories of nuclear physics.
“This response has never been demonstrated before, and it was essential to prove that it was possible before embarking on an attempt to make a 120,” Dr. Gates said.
“Creating new elements is a very rare feat. It’s part of the process and it’s exciting to have a promising path forward.”
“This was an important first step in trying to make something a little easier than the new ones to see how the movement from the calcium beam to the titanium beam changes the rate at which these elements are produced,” said Dr. Jennifer Pore of Lawrence Berkeley National Laboratory.
“When we are trying to create these incredibly rare elements, we are at the absolute edge of human knowledge and understanding. There is no guarantee that physics will work as expected.”
“Using titanium to create element 116, we now have the ability to verify that this production method works and plan the hunt for element 120.”
Team’s paper Published in the journal Physical Review Letter.
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JM Gate et al. 2025. Towards discovering new elements: production of rivermorium (z = 116) 50Ti. Phys. Pastor Rett 133, 172502; doi: 10.1103/physrevlett.133.172502
Although diverse animal sequences have evolved the ability to use tools (primates, parrots, octopus, crabs, hornets, etc.), the factors leading to evolutionary use that lead to tools are less understood. Fish can provide insight into these factors by comparing differences between tool-used and non-used species. The use of anvils is an example of the use of tools by fish. The fish holds the densely packed prey in its mouth, attacking it on an anvil to open it. Through the community science programmes we call Using fish toolsMarine biologists have collected 16 new observations of five anvil use in a group of WRASSES (colorful coral reef fish) called the New World Harikoeles. These new observations provide the first evidence of the use of ANVIL Halichoeres brasiliensis, Halichoeres poeyi and Halicoeres radiatusand first video evidence of anvil use Halichoeres Garnotti and Halichoeres bivittatus.
Tool-used genus within the family Labridae. Image credit: Taliel Adam et al. , doi: 10.1007/s00338-025-02633-w.
The use of tools was once considered human characteristics and a fundamental role in human evolution.
Evidence suggests that the use of tools is widespread among animals.
Animals use tools when using external objects to accomplish a particular task.
The tool allows animals to accomplish tasks and do them easier. The use of tools appears to be extremely beneficial for animals, and raises the question of why all animals do not use the tools.
Previous research into the evolution of tool use has been limited by morphology and ecology, which contrasts with the difficulty of finding closely related populations or species of varying degrees of use of tools.
Although it has not been well studied, the use of tools in fish may be an exception. Fish are the most distinctive vertebrate groups with high ecological and morphological diversity, even among closely related species.
The use of anvils is an example of tool use in fish. With anvil, the fish (i) grabs hard shell prey, such as sea urchins and bivalves, in their mouths, (ii) swims on hard surfaces such as rocks and coral heads, and (iii) opens the fierce surface quickly and repeatedly.
The use of anvils is described in 26 fish species, and all WRASSEs belonging to the family Labridae.
“The use of tools is usually related to humans, but this behavior proves that fish are far more clever than trust,” says Dr. Juliet Taliel Adam, a researcher at Macquarie University.
Through the use of fish tools in the Citizen Science Initiative, Dr. Taliel Adam and her colleagues gathered 16 new observations in five species. Harikoeles WRASSES.
The findings present the first evidence of three anvil use and two other two video evidence, extending the known anvil use range into the Western Atlantic.
“With these newly discovered tool-used species, it becomes clear that many species of Huaras use tools they didn’t know before,” Dr. Taliel Adam said.
“This study adds to the study of fish intelligence,” added Callum Brown, a senior author at Macquarie University.
“They demonstrate the use of flexible and dexterous tools and are expanding their understanding of the evolution of tool use in the animal kingdom.”
Team’s result It will be displayed in the journal Coral reef.
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J. Taliel Adam et al. Using tools by the New World Harikoeles WRASSES. Coral reefPublished online on March 26th, 2025. doi:10.1007/s00338-025-02633-w
Using advanced statistical modeling, a team of researchers from ETH Zurich, Seti Institute, and University ‘Tor Vergata’ Yonversity investigated how many exoplanets should be observed and understood before declaring that life beyond Earth is common or rare.
Future telescopes will investigate mild terrestrial exoplanets to estimate the frequency of habitable or inhabited worlds. Angerhausen et al. It aims to determine the minimum number of exoplanets required to draw statistically significant conclusions. Particularly for null results (i.e., no detection). Image credit: Sci.News.
In science, not being able to find anything can bring important insights.
When scientists look for life on exoplanets, they often focus on certain characteristics, such as water, gases like oxygen and methane, which may exhibit biological activity.
But what if scientists can’t find these features? Can we learn meaningful things about how ordinary life exists in the universe?
“Even one positive detection changes everything, but up until then we need to make sure we are learning as much as possible from what we can’t find,” said Dr. Daniel Angerhausen, researcher at ETH Zurich and SETI Institute.
New research shows that if scientists look at 40-80 planets and can’t find any signs of life, they can confidently conclude that less than 10-20% of similar planets have life.
However, this depends heavily on how certain we are for each observation.
These discoveries allow scientists to set meaningful caps on the prevalence of living in the universe.
Furthermore, if there is only 10% of planets in the Milky Way alone that have some form of life, it could still be more than 10 billion planets.
“This kind of outcome would be a turning point,” Dr. Angerhausen said.
“Even if life is not found, ultimately we can quantify planets that are truly rare or common with planets with detectable biosignatures.”
The findings will have a direct impact on future missions such as NASA’s Habitable World Observatory (HWO) and European-led large-scale interferometers on exoplanets searching for life.
These missions will study dozens of Earth-like planets by analyzing the planet’s atmosphere for water, oxygen, and even more complex biosignature signs.
Research shows that the number of observed planets is large enough to draw critical conclusions about the likelihood and prevalence of life in the galaxy.
However, this study points out that even with advanced equipment, these studies should carefully account for uncertainty and bias, and develop frameworks to ensure statistically meaningful results.
One important insight from this study is that uncertainty in individual observations, such as false negatives, can significantly impact conclusions.
“It’s not just the number of planets we observe. It’s about how confident we are to see what we’re looking for or not,” Dr. Angerhausen said.
“If we are not careful and confident in our ability to identify life, even large-scale research can lead to misleading consequences.”
The study will be published in today’s Astronomy Journal.
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Daniel Engerhausen et al. 2025. What if nothing is found? Bayesian analysis of null statistics in future exoplanet habitability and biosignature investigations. AJ 169, 238; doi:10.3847/1538-3881/adb96d
Chinese paleontologists have excavated relatively complete skulls and vertebrae that belonged to the previously unknown Metriacansosaurus theropod dinosaurs from the mid-Jurassic period.
skull of Yuanmouraptor jinshajiangensis. Image credit: Zou et al. , doi: 10.7717/peerj. 19218.
Yuanmouraptor jinshajiangensis roamed our planet about 170 million years ago (Central Jurassic).
This dinosaur was a medium-sized member Metriaacansosauridaceaeclade, a carnivorous dinosaur who lived in the masses of the ancient continent between the mid-Jurassic and mid-Cretaceous periods.
“The Metriacansosaurid family is a family of carnivorous dinosaurs and represents the basal branch clades within allosauroidosis,” says Dr. Yi Zou, a paleontologist at the Academy of Sciences at the Chinese Academy of Sciences and the Institute of Spine and Paleontology at the Academy of Sciences.
“Some studies argue that Metricanthosaurus has a closer relationship with Carcharodontosaurus, making the Metricanthosaurus a more derived group of allosauroidosis.”
“Regardless of where the Metricantosauraceae are within the Allosaurian family, members of this clade came from the late period, mainly from the central Jurassic region of western China, such as Sichuan, Chili peppers, Xinjiang and Yunnan.”
“Apart from species found in China, the Noashihara of Metriantosauld was reported during the late Jurassic in England, the late Jurassic in Kyrgyzstan, the late Jurassic in Thailand and the late Cretaceous period.”
“Recently, scientists have reported the possible distribution of this clade in the Tibetan Plateau.”
Fossilized ruins Yuanmouraptor jinshajiangensis were collected from the Zhanghe Formation in Yunnan Province, China.
“The specimen contains a relatively complete skull and the first 11 vertebrae, including 10 cervical vertebrae and the front dorsal vertebrae,” the researchers said.
“The preserved skull is measured at an anterior and posterior length of 53.9 cm, and the skull reconstruction is 60.1 cm in anterior and posterior length.”
Team phylogenetic analysis shows that the new species is located at the basal branching location within the Metriancanthaurid family.
“Yuanmouraptor jinshajiangensis Presents the most complete skull of the basal branch Tetanuran It has been reported in central China and provides valuable anatomical information on the unusual combination of skull and cervical spine paintings and cinnapomorphy in the Metriacansosauridae,” the scientist said.
“In addition, our phylogenetic analysis restored the phylogenetic position of the Piatonitzxauridae as a sister group of Avezapoda, not within megalosauroidosis.”
“In place of the monophyletic carnosauria (megalosauroidic acid + allosauroidosis), the phylogenetic analysis recovers three major branches within the tesarium in favor of the monophyletic avetheropoda (allosauroidea + coelurosauria).”
“The lack of consensus on the phylogenetic relationships of basal branch adiabatic over the past decades, as well as many relatively fragmentary materials within tetanus, more accurate character coding, and new discoveries of early members of this clade are necessary to unravel the interactions between the basal members of future groups.”
Discovery of Yuanmouraptor jinshajiangensis was reported in a paper Published online in the journal Peerj.
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Y. Zou et al. 2025. A new Metriantosauld wild-wrench dinosaur from the central Jurassic region of Yunnan Province, China. Peerj 13:E19218; doi:10.7717/peerj.19218
At 3 months’ age (born October 1, 2024), the miserable wolves of giant biological sciences, Romulus and Remus. Image credit: Colossal Biosciences.
The miserable wolves were like big cans, and were among the most common extinct carnivorous animals of the late Late Pleistocene megafauna in America.
These animals first appeared in the late Pliocene period 3.5 million to 2.5 million years ago, as a result of the mixing between two ancient Canid strains.
The miserable wolf was 25% heavier than the grey wolf, with a slightly wider head, with light thick fur and strong jaws.
As hypercarnivores, their diet consisted mainly of at least 70% meat from horses and bison.
They were extinct at the end of the recent ice age about 13,000 years ago.
The main hypothesis explaining their extinction is that their body size is larger than gray wolves and coyotes, making them more specialized in hunting large prey and unable to survive the extinction of giant prey.
“Our team collected DNA from 13,000-year-old teeth and 72,000-year-old skulls to create healthy, miserable puppies,” said Ben Lamm, CEO of Colossal Biosciences.
“It was once said that “a sufficiently advanced technology cannot be distinguished from magic.” “
“Today, our team will be unveiling some of the magic they are working on, revealing the broader impact on conservation.”
Three liters of the wicked wolves of giant biological science include two adolescent men (Romulus and Remus) and one female puppy (Khaleesi).
They thrive in more than 2,000 acres of safe ecological reserves, including specialized engagement zones and habit types.
They are continuously monitored through live cameras, security personnel and drone tracking on-site to ensure safety and welfare.
“The disastrous wolves’ disappearance is more than a biological revival,” said Mark Fox, chairman of MHA Nation Tribal.
“Its birth symbolizes awakening. The ancient spirit has returned to the world.”
“The miserable wolves have the echoes of our ancestors, their wisdom, and connections to the wild.”
“Its existence reminds us of our responsibility as custodians of the Earth to protect the delicate balance of not only wolves but life itself.”
“The work of our team…Red wolf (Canis Rufus) From three different genetic founder lines.
These liters include the adolescent female Red Wolf (hope) and three male Red Wolf puppies (flame, cinders, ashes).
“We’ve seen a lot of trouble with the stakes,” said Dr. George Church, a geneticist at Harvard University and co-founder of Colossal Biosciences.
“Another source of ecosystems comes from genes lost after being deelectrically removed from new technologies, such as deep ancient DNA sequencing, polyphyllatic characterization, multiplexed germ cell editing, and cloning.”
“The disastrous wolves are an early example of this, so far, including the maximum number of accurate genome editing in healthy vertebrates: their exponentially growing ability.”
Astronomers using the Muse Instrument with ESO’s extremely large telescope (VLT) detected ultra-large black hole-driven winds with the Burred Spiral Galaxy NGC 4945.
This image shows NGC 4945, a spiral galaxy that exceeds 12 million light-years in the constellation of Centaurus. The super-large black hole-driven wind of the NGC 4945 is shown in red in the inset. Image credits: ESO/Marconcini et al.
NGC 4945 It is more than 12 million light years away from Earth, the constellation of Centaurus.
Otherwise known as the Caldwell 83. That’s what this galaxy was like I discovered it by James Dunlop, the Sottsch astronomer in 1826.
NGC 4945 hosts one of the closest active, ultra-large black holes to Earth.
“At the heart of almost every galaxy, they are very large black holes,” the ESO astronomer explained in a statement.
“Some people are not particularly hungry, as they are in the heart of our own Milky Way.”
“However, the super-large black hole in NGC 4945 is greedy and consumes a huge amount of problems.”
Astronomers have studied the ultra-high Massive black holes of the NGC 4945 using the Muse Instrument, an ESO’s extremely large telescope (VLT).
“Contrary to the all-consuming reputation typical of black holes, this messy eater is blowing away the powerful winds of ingredients,” they said.
“This cone-shaped wind is shown in red in the inset and is covered in a wider image taken with La Silla’s MPG/ESO telescope.”
“In fact, this wind moves so fast that it completely escapes the galaxy, giving in to space in intergalactic space.”
“This is part of a new study measuring how the wind moves in several nearby galaxies,” they added.
“Muse’s observations show that these incredibly fast winds show strange behavior. They actually speed up far from the central black hole, and accelerate even further on their journey to the outskirts of the galaxy.”
“This process suggests that black holes control the fate of the host galaxy by ejecting potential star-forming material from the galaxy and attenuating the star’s fertility.”
“It also shows that more powerful black holes can hamper their own growth by removing the gas and dust they feed, bringing the entire system closer to a kind of galactic equilibrium.”
“Now, these new results bring us one step closer to understanding the mechanisms of wind acceleration that are responsible for galaxy evolution and the history of the universe.”
Survey results It will be displayed in the journal Natural Astronomy.
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C. Marconcini et al. Evidence of rapid acceleration of AGN-driven winds at the Kiloparsec scale. Nut Athlonreleased on March 31, 2025. doi:10.1038/s41550-025-02518-6
The discovery of stone tools, hearths and cooked food waste at a cave site in Latniya on the Mediterranean island of Malta indicates that hunter-gatherers had crossed at least 100 km of open water to arrive on the island 8,500 years ago.
Hunters and Gatherers had crossed at least 100 km of open water to arrive in Malta 8,500 years ago. Image credits: Daniel Clark/MPI GEA.
Maltese archipelago is a chain of smallest islands in the Mediterranean.
Humans were not thought to have reached and lived such a small, isolated island, about 7,500 years ago, until the Neolithic regional shift to life.
In the standard view, the limited resources and ecological vulnerability of the small island, combined with the technical challenges of long-distance sailors, meant that hunter-gatherers were unable or unfulfilled to take these journeys.
“Relying on the use of sea-level currents and wind breezes, as well as the practice of exploring landmarks, stars and other paths, there is a crossing of about 100 km per hour at a speed of about 4 km per hour.
“Even on the longest day of the year, these sailors would have been open water in the darkness of hours.”
At the site of a cave in Latniya in the northern Merry area of Malta, researchers discovered human traces in the form of stone tools, hearths and cooked food waste.
“At this location, we recovered a variety of animals, including hundreds of bodies of deer, birds, turtles and foxes,” said Dr. Matthew Stewart, a researcher at Griffith University.
“Some of these wildlife were long thought to have been extinct by this point,” added Professor Eleanor Scerri, a geographer at the Max Planck Institute and a researcher at the University of Malta.
“They were hunting and cooking red deer with turtles and birds.
In addition to this, scientists have found clear evidence regarding the exploitation of marine resources.
“We found that seals, groupers, thousands of edible marine gastropods, crabs and sea urchin debris all cooked undoubtedly,” said Dr. James Brinkhorn, a geography researcher at the University of Liverpool and the Max Planck Institute.
“The diverse range of terrestrial areas, particularly the incorporation of the ocean fauna into their diet, have enabled these hunter-gatherers to maintain themselves on an island as small as Malta,” Dr. Stewart said.
These findings raised questions about the extinction of endemic animals in Malta and other small Mediterranean islands, and whether distant Messium Age communities are linked through seafarers.
“The results add a millennium to Maltese prehistoric times and enforce a reassessment of the capabilities of Europe’s last hunter-gatherer sailors, and its connections and ecological impacts,” Professor Scerri said.
Team’s paper It was published in the journal today Nature.
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EML Scerri et al. The marine voyage of hunter-gatherers has been extended to remote Mediterranean islands. NaturePublished online on April 9, 2025. doi:10.1038/s41586-025-08780-y
Paleontologists looked at the teeth Teleoce’s major – Found in an extinct species of nasal bacteria that lived in North America from 17.5 million to 5 million years ago. Ash falling fossil bed Nebraska, USA. Here, over 100 Teleoce’s major The individual in a single hole died and was buried in ashes from the eruption of Yellowstone’s superintendent.
The flock of Teleotheras Sister. Image credit: Jay Matternes/Smithsonian Museum.
Since discovering the rhinoceros at Nebraska’s Ashwood Fossil Bed State Park in 1971, researchers have wondered what attracted so many animals in the same location.
Did they converge from afar? Perhaps they sought shelter from natural disasters that unfolded volcanic eruptions with those asphyxiation ash?
“We found out they weren’t moving much,” said Clark Ward, a researcher at the University of Minnesota.
“We found no evidence of seasonal migration or disaster response.”
Ward and colleagues looked at the ratio of strontium, oxygen and carbon isotopes Teleoce’s major Teeth tracking long, operating animal movements across the landscape.
“By studying the carbon of animals, we can reconstruct the carbon of our environment and understand what kind of vegetation lived there,” Ward said.
“You can use it to reconstruct how wet and dry the environment is.”
“And strontium tells us where the animals are forged because isotopic ratios are associated with soil and supporting bedrock.”
Teleoce’s major It was a one-horned rhino with a barrel-shaped body and sturdy hippo-like legs. Like hippos, they ate grass.
And, like hippos, researchers believe that these rhinoceros have spent a lot of time in and around the water.
Due to their vast size, they had few predators during the Miocene era.
However, their calves would have been vulnerable to predators like hyenas, known as bone-breaking dogs.
In fact, some of the specimens found on the Nebraska site have evidence that the scavenger removed some of the bodies after its death. And ancient trucks from a 45 kg (100 pound) dog are found there.
The giant Yellowstone volcano has erupted many times over the past 12 million years.
“The ashes from the eruption traveled 1,127 km (700 miles) in what is now Nebraska, where they piled up in snow, like snow,” Ward said.
“But the ashes that were blown by the wind continued to fall into Nebraska, long after the first eruption.”
“The ashes would have covered everything: grass, leaves, water.”
“Reconstructing how we equip the ancient landscapes that have disappeared provides an important context for understanding their paleoecology and sociality, and the environment in which they lived,” the scientists concluded.
Their paper Published in the journal Scientific Report.
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CT Word et al. 2025. Enamel carbon, oxygen and strontium isotopes reveal limited mobility in extinct rhinoceros in Ashford Fossil Bed, Nebraska, USA. Sci Rep 15, 11651; doi:10.1038/s41598-025-94263-z
The rotation period for Uranus was estimated at 17.24 hours from radio auroral measurements by NASA’s Voyager 2 spacecraft in 1986. Using long-term tracking of Uranus’ poles between 2011 and 2022 from Hubble images of UV light, astronomers now have an updated independent, highly accurate rotation period of 17.247864 hours, or 28 seconds longer than the estimated Voyager 2.
This image of the Uranus aurora was photographed by Hubble on October 10th, 2022. Image credit: NASA/ESA/Hubble/L. Ramie/L. Slomovsky.
“Our measurements not only provide essential references to the planetary science community, they solve long-standing problems. Previous coordinate systems based on outdated rotation periods quickly become inaccurate, making it impossible to track Uranus’ magnetic poles.
“With this new longitude system, we can compare nearly 40 years of observations of the Aurora and even plan future Uranus missions.”
This breakthrough was possible thanks to long-term surveillance of Hubble’s Uranus.
For over a decade, telescopes have regularly observed their ultraviolet emissions, allowing astronomers to generate magnetic field models that match changes in the position of magnetic poles with time.
“The continuous observation from Hubble was extremely important,” Dr. Lammy said.
“Without this rich data, it would not have been possible to detect periodic signals at the level of accuracy achieved.”
Unlike Earth, Jupiter, or Saturn’s aurora, Uranus’ aurora behaves in a unique and unpredictable way.
This is due to the highly tilted magnetic field of the planet, which is significantly offset from the axis of rotation.
The findings not only help astronomers understand Uranus’ magnetosphere, but also help to provide important information for future missions.
“These discoveries set a stage for further research that will deepen our understanding of one of the most mystical planets in the solar system,” the author said in a statement.
“The ability to monitor objects for decades has allowed Hubble to remain an essential tool for planetary science, paving the way for the next era of exploration on Uranus.”
result It was published in the journal this week Natural Astronomy.
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L. Ramie et al. A new rotation period and longitude system for Uranus. Nut AthlonPublished online on April 7th, 2025. doi:10.1038/s41550-025-02492-z
Jonathan McDowell is the go-to expert for all spaceflight. Thousands of subscribers read his monthly Space Reportand we’ve seen him explain unexpected events on orbit on cable news and other media platforms.
But it was always his side gig. For 37 years, Dr. McDowell was an X-ray astronomy expert at the Harvard Smithsonian Center for Astrophysics. Earlier this year, he announced that he would retire from the role and also leave the US for the UK.
The decision, he said, was complicated by policy changes that have been the first since President Trump took office due to continued pressure on the federal science budget.
“It doesn’t seem like there’s any more opportunity to be an effective scientist and an effective person building the scientific community,” Dr. McDowell said. “I’m just proud to be as American as I used to be.”
Born in the US and the UK to gain dual citizenship, Dr. McDowell joined the Harvard Smithsonian Center for Astrophysics in 1988 and leads the Science Data Systems Group at NASA’s Chandra X-Ray Observatory, the 26th space telescope.
He’s preparing to move abroad, and with the accent he jokes, he’s clearly becoming British. This conversation has been edited for brevity and clarity.
What is your interest in space?
There were really two routes. The satellites and space side really came from the Apollo program. I remember walking home from a school in the northern UK. I saw the moon in the sky and said, “Next week there will be humans there for the first time. They will be in another world.” It blew my 9-year-old mind.
The astronomical side was wondering what the real story was about where we came from and how the universe turned out to be. It pushed me towards an interest in cosmology at a very early age. My dad was a physicist and my babysitter was everything. I didn’t realize there were other options.
Another major influence was “Doctor Who.” I started watching it at the age of three. It infuses me with the wonders about the universe and the idea that one crazy person can help how humanity interacts with it.
All of them came together and I was just fascinated by what was there.
The UK school system specializes early. I’ve been doing orbital calculations since I was 14, and since I learned Russian, I was able to read what the Soyuz astronauts were doing. I have completed my PhD. At Cambridge University, I was able to spend time with people like current astronomer royals Stephen Hawking and Martin Reese. It wouldn’t have been a better training.
On the side, I used my technical skills to get deeper into spaceflight. At the time, the media didn’t actually cover the space, so I forced my own research.
Did that lead to the creation of Jonathan’s Space Report in 1989?
I just moved to Smithsonian Astrophysical ObservatoryIt was once the center of space information for the public in the 1950s. The civil servants began attacking me with questions they still get from the public, so in Self-Defense, they started preparing their briefings about what’s happening in space every week.
Someone has recommended that I put a briefing in Usenet, a kind of precursor to the web, but it doesn’t exist yet. To my surprise, it was popular. And I never looked back.
In the US, in particular, we saw it more internationally than most news sources. I gave it the same weight as what Russians, Chinese and Europeans did. It helped me gain a reputation and people in the space industry started sending me information.
Why did you keep your space report free?
Honestly, most of the work I do for myself anyway. I am the No. 1 reader. But I now have this role of being someone who trusts to say what’s going on. If I don’t receive direct money for it, I can maintain its reputation for independence and objectivity.
How have space flight and space exploration changed in your life?
I grew up in the 1960s during a superpower. It was the US, the Soviet Union and the Cold War. In the 1970s, space became more international. China, Japan, France and others have begun selling their own rockets and satellites. Then, in the 1990s, there was a shift towards commercialization in both communications and imaging. And then there was another change in the 2000s and 2010s that I call democratization. There, cheap satellites created space within the budgets of university sectors, developing countries, or start-up companies.
The most important thing in space in 2025 is not that there are more satellites, but more players. This has implications for governance and regulations.
Another way to think about how things have changed is where the frontier is. When I was a child, it was a low-earth orbit. The frontier is now close to the asteroid belt, with the moon and Mars becoming part of the accumulation of humanity. On the other hand, low-Earth orbits are so normalized that they are not necessary to deal with space agencies. Just call SpaceX.
How do you plan to spend your retirement?
The UK has been actively and actively working recently in promoting what we call space sustainability. They are committed to using the space, but they are responsible. I hope to be involved in those efforts.
Compile Large catalogue of Space Junk Around the sun that the US Space Force does not pursue. It’s not anyone’s job to track it right now. We will return years later, so we need to put together our actions for things that are farther, farther, what we send out between the planets. We think that when it’s really a rocket stage, it’s an asteroid that hits Earth.
Obviously, it all needs to be scanned and it will take me years. Somewhere, a reasonable commute from London, you will need to find a new home in the library. My plan is to make it available by appointing it when it is unpacked.
What motivates me to closely record human activity in space?
As an astronomer, I think it’s a measure for a long time. I imagine someone who wants to know that, a thousand years from now, perhaps more extraterrestrial times, has stepped into space for the first time at this important moment in history.
I would like to save this information so that they can reconstruct what we did. That’s who I write about. Not today’s audience, but a thousand years from now.
Physicists of the Karlsrue Tritium Neutrino (Catlin) experiment have reported so far the most accurate measurement of the upper mass limit of neutrinos, establishing it as 0.45 electron volts (EV), less than a millionth of the electron mass.
Interior view of the main spectrometer of catrin. Image credit: M. Zacher/Katrin Collaboration.
Neutrinos are the most abundant particles in the universe and exist as three different types or flavors: Electron Neutrino, Muon Neutrino, and Tau Neutrino.
These flavors vibrate. In other words, a single neutron can be converted to each type when it moves, providing compelling evidence that neutrinos have masses that contradict the original assumptions of massless neutrinos in the standard model.
But their exact mass remains one of the great mysteries of particle physics.
in New paper In the journal Sciencethe physicists from the Catlin collaboration present the results of the first five measurement campaigns of the Catlin experiment.
“The catrin experiment determines the mass of neutrinos by analyzing the beta decay of tritium,” they explained.
“During this decay, the neutrons are converted into protons, releasing both electron and electron antioxidant, the latter being neutrino antiparticles.”
“We can infer the mass of neutrinos by analyzing the distribution of total disintegration energy between the emitted electrons and the electron antioxidants.”
For 259 days between 2019 and 2021, Catlin physicists measured approximately 36 million electrons of energy. This is a dataset of 6 times the previous run.
The findings establish the strictest laboratory base upper limit for effective electron neutrino masses and place them below 0.45 eV at a 90% confidence level.
This result shows a third improvement in the mass limit of neutrinos, and doubles the previous limit.
“For this result, we analyzed five measurement campaigns. The total data collection from 2019 to 2021 is about a quarter of the total data expected from Catlin,” said Dr. Catlin Valerius, one of the two co-spokemens for the Catlin experiment and a physicist at the Karl-Thru Institute.
“In each campaign, we gained new insights and further optimized the experimental conditions,” said Dr. Suzanne Mertens, a physicist at the Max Planck Institute for Nuclear Physics and the Institute of Technology Munich.
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Max Aker et al. (Catlin collaboration). 2025. Direct neutrino mass measurements based on 259 days of catrin data. Science 388 (6743): 180-185; doi: 10.1126/science.adq9592
Paleontologists excavated the fossilized remains of a new and rare Terazinosaurus dinosaur with atypical hands in Mongolia.
Reconstructing the life of Duonychus tsogtbaatari. Image credit: Masato Hattori.
Duonychus tsogtbaatari He lived in what is now Mongolia during the late Cretaceous period, between 1995 and 90 million years ago.
The new species belongs to Teresino Sauriaa group of herbivorous or omnivorous theropod dinosaurs that lived in Asia and North America during the Cretaceous period.
“Therizinosauria is a clade of a rare herbivorous or omnivorous theropod dinosaur known from Cretaceous sediments in Asia and North America,” wrote paleontologist Yoshitsugu Kobayashi Yosh and his colleagues at the Hokkaido University Spine Museum on paper.
“This clade is most recognizable in the triductyl (three fingers) hand with three large clawless non-guals, as illustrated by its large body. Tericinosaurus From the latest Cretaceous period in Mongolia. ”
“Like a more primitive member of the clade Falkarius, Beipiaosaurusand JianChangosaurus There were relatively small Unguals compared to the more derived forms Ellianaurus, Nothronychusand in particular Tericinosaurus. ”
“As herbivorous or omnivorous theropods with long necks and small leaf-shaped teeth, their unusual evolution of hands may have played an important role in the feeding ecology of this clade.”
According to paleontologists, Duonychus tsogtbaatari is a medium sized terazinosaurus and estimates weight is about 260 kg.
This dinosaur fossil is Bien Series Formation Gobi Desert, Ömnögovi Province in southeastern Mongolia.
“The specimen was a six posterior joint vertebrae, six distinct sacral vertebrae with sacrum ribs, frontline coccyx, several dorsal ribs, partial left shoulder blade and coracoid, coracoid, umeri, ulnae, radi, rightan, right, right, pubest, right, right, right, right, right, right, right, right, right, the proximal end of left ischemia,” the researchers wrote.
Reconstructed skeletons and selected elements Duonychus tsogtbaatari. Image credits: Kobayashi et al. , doi: 10.1016/j.isci.2025.112141.
Duonychus tsogtbaatari Unlike other Tericinosaurus in that their hands only have two fingers, rather than three fingers.
“As for other Therizinosaurus, this new species is unique in having a definitive didigital hand,” the scientist wrote.
“The specimen also preserves the complete three-dimensional sheath, representing the keratinous claws, among non-Pallavian theropods.”
Well-preserved specimens Duonychus tsogtbaatari It provides insight into the functional aspects of that kind.
“Saved keratin nails based on abdominal curvature and nail attack angle Duonychus tsogtbaatari “The author writes, reveals features within the scope of scansorial (climbing), tenasorial (grappling).”
“Of these functions, herbivorous or omnivorous diet and body size Duonychus tsogtbaatariLike other terazinosaurus, it suggests the use of amps that helps grasp branches, such as chameleons and some mammals (e.g., Southern Tamandua, Alitant), or to grip, raise, or manipulate bait (e.g., bird birds).
“Even though there are only two functional numbers, Duonychus tsogtbaatari Given the extreme flexion at Ungual joints and the strong curvature of the keratin nails, it may have been an effective Glasper, a feature unknown in other terazinosaurus. ”
“Based on the shape and dimensions of the keratin nail dimensions, Duonychus tsogtbaatari They could have grabbed branches or herds of vegetation up to about 10 cm in diameter. TericinosaurusI’ll suggest that Duonychus tsogtbaatari Foraging behaviors may have been more selective. ”
“Manus Duonychus tsogtbaatariits powerful flexion and claw curvature further supports that the derived Therizinosaurus manus is likely to be provided in a rake or hook-and-pull function to bring vegetation into the mouth during feeding, as previously suggested. ”
“The claws usually have a dominant function for hook-and-pull foraging in the most derived Theresinosaurus, but these structures may also be used for other purposes such as territory, defense, courtship, and play.”
“In addition to the unexpected morphological diversity of the Manus of Telesinosaurus (i.e., director), Duonychus tsogtbaatari It reveals greater species richness of Tericinosaurus in the ecosystem of the Baiancily Formation than previously recognized,” they concluded.
Team’s paper It was published in the journal on March 25th Iscience.
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Yoshitug Kobayashi et al. Didictilteresinosaurus with keratinous nails preserved since the late Cretaceous period in the late Mongolia. IsciencePublished online on March 25th, 2025. doi:10.1016/j.isci.2025.112141
National Health Secretary Robert F. Kennedy Jr. vowed on Thursday to assemble experts from around the world to investigate the reasons behind the increasing rate of autism in the United States.
“We have initiated an extensive testing and research initiative involving hundreds of scientists globally,” Kennedy declared during a cabinet meeting hosted by President Trump. “By September, we will have identified the causes of the autism epidemic and will be able to eliminate those exposures.”
“This will be a significant press conference,” Trump responded.
However, scientists who have dedicated years to uncovering the cause of autism expressed doubts about Kennedy’s proposed timeline.
They noted the complexities involved in identifying a singular cause in potential contributors like pesticides, air pollution, and maternal diabetes.
Dr. Philip Landrigan, a pediatrician and expert in environmental toxins, cited the current extensive layoffs and reductions in Kennedy’s research at the Department of Health and Human Services as a reason to question such swift progress.
“It is hard to envision a significant scientific breakthrough by September, especially with the current pause of various other pediatric illness research at hospitals and medical schools due to funding cuts from HHS,” Landrigan remarked.
Kennedy’s office did not provide many specifics about the plan initially. Later that day, Kennedy offered more insights, indicating that the National Institutes of Health would lead the initiative.
He mentioned the Centers for Disease Control and Prevention would be central to the effort. I’ll release the data soon, showing an increase in autism diagnoses in one in every 31 children. Many experts believe the rise in autism rates is due to heightened awareness of the spectrum of disorders and expanded diagnostics.
“We are receiving inquiries from scientists nationwide and globally,” Kennedy stated. In an interview with Fox News. “All factors are being considered—from our food system to water, air quality, child-rearing practices, and other changes that may have contributed to this epidemic.”
In an interview, Kennedy also mentioned the intention to compare autism rates between vaccinated and unvaccinated children. Many scientists dismiss this approach, pointing out that parents who vaccinate their children are more likely to seek diagnoses due to increased interactions with healthcare providers.
Numerous researchers and scientists have long worked to find the cause of autism. They have started to identify factors like pesticide exposure, solvents in the workplace, maternal infections during pregnancy, maternal diabetes, and exposure to chemicals like phthalates and PFA, known for their persistent nature in the environment.
Studies have indicated that environmental exposures may interact with human genes in varying ways, underscoring the complexity of autism. Dr. Hertz-Picciotto added that obtaining funding for clinical studies into autism causes is challenging, but new research could propel the field forward, although it may take years.
Describing all the research to be completed by September as “silly,” Dr. Alice Kuo, chief of pediatric medicine for autism at the University of California, Los Angeles, mentioned her involvement in a longstanding NIH project that investigated children’s health nationwide.
The study, which followed thousands of children and parents to uncover potential autism causes, was costly and prematurely terminated, according to Dr. Kuo.
She emphasized that planning and designing a study would take months, and unraveling the answers would require years of research.
In a social media post, Kennedy thanked the president and the Make America Healthy Commission for their support. The commission was established by executive order in February to assess threats to children from various exposures and propose a strategy to address the findings.
The Trump administration announced Friday that it would delay the implementation of Biden-era rules intended to limit coverage of unproven, costly bandages known as skin substitutes.
The policy will be It’s late until 2026 allowing businesses to take advantage of the loopholes in Medicare rules to continue to set higher prices for new products. The New York Times reported Thursday that businesses are selling these bandages to doctors at discounted prices, while doctors are charging Medicare for the price of full stickers and pocketing the differences.
According to an analysis conducted by Earty Read, an actuarial company that assesses the costs of large healthcare companies, Medicare spending has skyrocketed above $10 billion from $1.6 billion in 2024. Some experts said bandage spending is one of the biggest examples of waste in the history of Medicare, an insurance program for the elderly.
The Super PAC for President Trump’s election campaign received a $2 million donation from Extreme Care, a leading seller of skin alternatives. Trump has criticised his social media policy twice, saying it hurts patients who use the product with diabetic pain.
“‘Crooked Joe’ has broken through policies that will lead to more suffering and death for Medicare diabetics,” Trump wrote on Truth Social in March.
Extremity care also criticized the plan, claiming it would disrupt the supply chain, eliminate innovation and increase costs for both doctors and patients. The company says it complies with high ethical standards, but did not respond immediately to requests for comment regarding the new delay in the policy.
Over 120 skin alternatives are on the market. They average an average of $5,089 per square inch, with the most expensive time exceeding $23,000.
Biden-era rules would have limited Medicare coverage for a small subset of products that have been shown to be effective in randomized clinical trials. The new policy will be applied to patients using ulcer and leg pain bandages known as ulcers. This can be caused by diabetes or poor circulation.
Medicare said in a Friday’s Statement It will consider policies as part of the transition to a new administration. During that time, he said, “We believe it is important to maintain patient access to skin replacement products with quality evidence of effectiveness.”
Mass Coalition, a group supporting the skin substitute industry, said it was “satisfied” with the delay. Public relations officer Preya Nonona Pinto said the group is looking forward to working with Medicare on “coverage policies and payment reforms that guarantee access to skin replacements.”
This week, President Trump oversaw 10 federal agencies, including the Environmental Protection Agency, the Energy Agency and the Nuclear Regulation Authority. Implement a new procedure Discarding a wide array of years of energy and environmental regulations.
He told the agency that oversees everything from gas pipelines to power plants and oversees everything that inserts “sunset” provisions, which automatically expire by October 2026. If an agency wanted to maintain the rules, it could only extend it for up to five years at a time.
Experts say the directive faces major legal hurdles. But it was one of three executive orders from Trump on Wednesday, and he declared that he was pursuing new shortcuts to weaken or eliminate restrictions.
in Another orderhe directed a rollback of federal regulations that restrict the water flow of shower heads with a very unusual legal justification.
“No notices and comments are required as I’m ordering it to be abolished,” Trump’s order said.
Legal experts called the sentence a surprising, violating decades of federal law. 1946 Management Procedures Federal agencies require that they go through a lengthy “notice and comment” process when issuing, amending or repealing key rules, and in general, agencies that do not follow these procedures often find actions blocked by the court.
“In that respect, this is all completely illegal,” said Jody Freeman, director of the Harvard Law School Environment and Energy Law Program.A former White House official under President Barack Obama. “They don’t care if the real lawyers have left the building, they want to hug all of these cases and see if the court bites or not.”
The regulatory process has often been criticized as troubling and time-consuming, and the idea of periodically expiring all government regulations has been promoted in conservative circles for many years. It is known as Zero-based regulatory budgets, A twist on a zero-based financial budget. This is a system in which budgets are built from scratch each year, instead of taking over historic spending amounts.
The idea may have received recent boost from Elon Musk, the billionaire adviser to Trump. “Essentially, regulations should have no default,” Musk said. Public Call His social media site X in February. “The default is gone, not the default. And if it turns out that the restrictions have missed the mark, you can always add it again.”
“We have to clean up the wholesale prostitution of regulations and we have to keep government away from the backs of everyday Americans so that people can get things done,” Musk added.
It is unclear how much the order of the sunset will affect it. Legal experts said the executive order “does not apply to a regulatory permit system that allows regulations approved by the law.”
“We’re excited to see the importance of our efforts to help people change,” said Michael Gerrard, director of the Sabin Climate Change Law Center at Columbia University. “Most environmental laws appear to fall into that category.”
“The president is right to assure that he doesn’t see Americans mentioning that they are unconstitutional or that they are restraining American energy and competitiveness that is inconsistent with federal law,” White House spokeswoman Taylor Rogers said in a statement.
In another order called “title”Instructing the abolition of illegal regulationsTrump gave 60 days to ministers 60 days to identify federal rules they deemed illegal and to plan to abolish them. The order said that agency managers can bypass the notification and comment process by taking advantage of the exceptions that experts say are usually booked for emergencies.
However, legal experts said the laws written by Congress, which govern the way federal agencies remove regulations, are extremely strict.
Typically, if a federal agency, such as the EPA, issues or changes regulations, it will first publish the proposed rules and make the time to comment. Agency officials then read and respond to the comments, providing detailed evidence in support of the changes they want to make, indicating that they have addressed public concerns. The agency then publishes the final rules.
“The Management Procedure Act is a boring, sounding law that no one cares about, but we treat it as a basis in our legal profession,” Freeman said. “It tells the federal government that it needs to purposefully do things, take public opinions and rationally adhere to their actions. It’s a promise that the government is not arbitrary.”
There is Specific conditions If the agent can bypass certain steps. For example, if emergency regulations regarding plane safety need to be issued.
However, the Trump administration appears to be using this so-called legitimate cause exception to push for revoking much broader federal rules.
In the past, courts have had little patience when federal agencies tried to circumvent the regulatory process. During Trump’s first term, officials sometimes announced that they had taken important measures and that they had wiped the restrictions out just to be reversed by the court. According to a database held by New York University, the administration lost 76% of cases where environmental policy was challenged, losing a much higher loss rate than previous administrations. Research Institute for Policy Integrity.
This time, Trump administration officials may want the court to be more sympathetic. With three Supreme Court judges appointed by Trump, the court now has a conservative vast majority who have expressed deep skepticism about environmental regulations.
In some cases, administration actions may be legally defensible. For example, when moving to abolish shower water flow restrictions, Trump called for a redefine “shower heads.” In that case, the White House can try to argue that it is abolishing what is called interpretive rules rather than a major regulation, and does not need to go through the same legal process. But experts said that just because Trump said that, the agency couldn’t argue that it was allowed to skip those steps.
“No notifications and comments may be necessary,” said Jonathan Adler, a conservative legal scholar at Case Western Reserve University. “Not because Trump orders it to be abolished, but because there’s a question of whether the only thing that’s been abolished is a definition, then whether it’s an interpretive rule.”
Some say Trump’s plan, which allows regulations to expire every five years, could make it difficult for businesses to plan for the future.
For example, the Federal Energy Regulation Commission has everything from power lines to utility accounting, said Aripescoe, director of Harvard Law School’s Electrical Law Initiative. In theory, new orders should expire regularly.
“The first section of that order talks about how businesses are sure they need,” says Lisa Heinzerling, a law professor at Georgetown University. “But the whole order is a recipe for eternal uncertainty.”
Amidst the chaos over global trade, countries around the world have reached a modest, yet surprising, modest agreement to reduce the climate pollution that arises from shipping goods from around the world.
It reached in London under the auspices of the United Nations Agency, the United Nations maritime organisation, so all ships passing goods across the ocean must either reduce greenhouse gas emissions or pay a fee.
The target is not what many people wanted. Still, it is the first time that global industries have faced the prices of climate pollution, no matter where they operate. Revenues are primarily used to help the industry clean up the fuel. Some of them can also go to developing countries, which are most vulnerable to climate risks. The agreement comes into effect in 2028 and approval by the country’s representative will be withheld at the next agency meeting in October.
Given the widespread support for Friday’s term, the organisation head has expressed his desire to be hired in October.
This contract was even more remarkable in international cooperation, as it reached even after the US. I was drawn from the lecture At the beginning of the week. No other countries followed.
“The United States is one country, and one country cannot derail the entire process,” said Faig Abbasov, Maritime Director of Transport and Environment, a European advocacy group that promoted the cleaning of the maritime industry. The contract is “the first binding decision that forces transport companies to be decarbonized and switched to alternative fuels.”
The contract applies to all ships, regardless of who’s flag, including ships registered in the United States. It remained unclear how Washington would respond to the fee agreement or how it would respond.
State Department officials only said the United States had not participated in the negotiations.
Ships run primarily on heavy fuel oil, sometimes called bunker fuel, and more than 80% of the world’s goods travel by ship. The industry accounts for around 3% of global greenhouse emissions, comparable to aviation emissions.
The agreement reached on Friday is far less ambitious than originally proposed by a group of island nations who proposed a universal assessment of emissions.
After two years of negotiation, the proposal sets up a complex two-tier fee system. Sets the carbon strength target. This is like a clean fuel standard for cars and trucks. Ships using traditional transport oil will have to pay a higher fee (producing $380 equivalent to metric tons of carbon dioxide), while vessels using less carbon-intensive fuel mix will have to pay a lower fee ($100 for all metric tons above the fuel standard threshold).
The organization estimates it will raise between $11 billion and $13 billion a year.
“That’s a positive outcome,” said Arsenio Dominguez, executive director of the organization. “This is a long journey. This doesn’t happen overnight. There’s a lot of concern, especially from developing countries.”
Thresholds become more severe over time. The industry can switch to biofuels to meet the standards. That is a controversial approach because biofuels are made from crops and growing more crops to make fuel can contribute to deforestation.
The new transport fuel standards aim to promote the development of alternative fuels that include hydrogen.
There have been objections from many quarters. Developing countries with maritime fleets said they would be unfairly punished because they have an old fleet. Countries like Saudi Arabia, which ships large quantities of oil, and China, which exports everything from plastic to electric cars around the world, have balked suggestions to set higher prices, according to people familiar with negotiations.
“They have given up on the proposal of a reliable source of income for us who are desperately needing finances to help with the impact on the climate,” said Ralf Lebenbanu, Minister of Climate in Vanuatu in a statement after the vote.
Eventually, countries that voted in favor of the compromise agreement included China and the European Union. Saudi Arabia and Russia voted against it.
The United States has withdrawn from consultations entirely.
The global shipping industry agreed in 2023 to eliminate greenhouse gas emissions by around 2050. Last year, we tracked that commitment with a more concrete plan and took the first step towards establishing carbon prices across the industry.
The forecasts from the International Shipping Office, an industry group, found that prices have negligible effects. “We recognize that this may not be the agreement every section of the industry wanted, and we are concerned that this may not be far enough ahead of itself in providing the certainty that is needed.” “But that’s a framework we can build.”
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