Florida Buzzes with Anticipation for NASA’s Artemis II Moon Launch: A Must-See Event

The highly anticipated Artemis II event will mark the family’s first opportunity to witness a rocket launch in person. Aaron plans to drive to Titusville, searching for a less crowded viewing spot for optimal viewing.

The surge of tourists flocking to central Florida is a significant boost for the local economy, although heavy traffic remains a challenge.

Beachfront hotels have been fully booked for weeks, if not months. Many local businesses are participating in the launch festivities, enhancing the community spirit.

The Ace Hardware sign in Titusville showcases a photo of an astronaut, advertising essential launch viewing supplies. A Cocoa Beach shop is offering commemorative items, including Artemis II Aloha shirts.

In addition, Playalinda Brewing Company has crafted a themed pale ale named Artemis IIPA.

“In 2022, Playalinda released Artemis Pale Ale, and with this new venture, we wanted to take it a step further, launching Artemis II Double IPA,” said Ronnie Chabot, one of the brewery’s four owners and operators.

After the beer went on sale on February 3, ahead of the initial launch window targeted by NASA, Chabot reported that both cans and draft beer sold out within days. The beer features a retro label showcasing a Space Launch System rocket and Orion spacecraft, complete with an “Easter egg” for space enthusiasts—the moon depicted in its phase during the launch of Artemis II.

When NASA was forced to abandon the opening launch opportunity that same month, Playalinda decided to produce a larger batch. These cans also sold out swiftly.

“It was the fastest-selling item at the brewery,” Chabot noted.

Source: www.nbcnews.com

Next Steps for Astronauts: What Happens After Space Missions

If all goes according to plan, the Artemis II astronauts will embark on a three-day journey to the moon.

Their significant milestone is set for Monday, when they will fly around the moon. This historic maneuver will enable humans to travel farther from Earth than ever before, potentially breaking the distance record of 248,655 miles established by Apollo 13 astronauts in 1970.

During the flyby, the Artemis II crew will approach within 4,000 to 6,000 miles of the moon’s surface. According to NASA, from this vantage point, the moon will appear roughly the size of a basketball held at arm’s length.

As they orbit the moon, the astronauts will observe portions of the moon’s surface for the first time through human eyes, specifically the far side of the moon that is never visible from Earth.

Following the orbit, the astronauts will conclude their mission with a return flight to Earth, culminating in a splashdown in the Pacific Ocean near San Diego on April 10th.

The Artemis II mission is a crucial element of NASA’s plans to return astronauts to the moon and establish a sustainable human presence there, with future aspirations to construct a lunar base.

October 2025: Viewers witness a launch from Launch Facility 39B at Kennedy Space Center.
Image Credit: Chip Somodevilla/Getty Images

In 2024, NASA plans to launch the Artemis III mission, which will utilize a commercially built lunar lander to demonstrate technology in low Earth orbit. Companies like SpaceX and Blue Origin are developing landers to transport NASA astronauts from lunar orbit to the moon’s surface.

Following Artemis III, NASA intends to launch the Artemis IV mission with the goal of landing on the moon sometime in 2028.

Source: www.nbcnews.com

Historic Artemis II Launch: Astronauts Set to Return to the Moon

Artemis II mission launch

Artemis II Mission Launch from Kennedy Space Center

AFP (via Getty Images)

The highly anticipated Artemis II mission marks humanity’s first crewed journey to the moon since the Apollo program ceased in 1972. Set to launch from Cape Canaveral, Florida, on April 1, this groundbreaking mission will take four astronauts further into space than ever before.

This mission represents NASA’s second flight of its Space Launch System (SLS) rocket and the Orion crew capsule, showcasing its first crewed operation following the successful unmanned Artemis I mission in 2022 that circled the moon.

Upon launch, NASA astronauts Reed Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen will spend the initial two days in Earth orbit, testing the spacecraft’s systems. A critical aspect of these tests is to maneuver the Orion capsule for docking with an older spacecraft, a process that will require astronaut control for safety.

“We may need to intervene if docking doesn’t go as planned,” Glover mentioned during a press conference on March 29. “Our goal is to ensure we can manage any unexpected situations.”

After completing these tests, Orion will embark on its lunar orbit, reaching a maximum distance of approximately 402,000 kilometers from Earth, surpassing the record set by Apollo 13 in 1970. This orbit will provide astronauts with an unprecedented view of the moon’s hidden regions due to favorable lighting conditions.

The entire mission is expected to span approximately 10 days before the Orion capsule returns safely to Earth. Looking ahead, the next phase—Artemis III—is slated for 2027, which will involve testing the lunar module’s docking system but will remain in Earth’s orbit, instead of landing on the moon as initially proposed. The following Artemis IV mission in 2028 aims to achieve a moon landing.

“Our team’s primary objective has always been to ensure the success of Artemis III,” Wiseman stated in a press release. These ongoing missions are essential for establishing a permanent lunar presence, with NASA officials envisioning human habitation on the moon for years to come.

“We genuinely hope that this mission opens the doors to a new era where everyone on Earth can view the moon as a reachable destination,” Koch added, emphasizing the mission’s significance.

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Source: www.newscientist.com

The Shroud of Turin: Secrets of DNA from Humans, Plants, and Animals Uncovered

The Shroud of Turin is engraved with an image resembling Jesus Christ.

Public Domain/Art Collection 2/Alamy

Recent DNA analysis has unveiled a significant number of contaminants—animal, plant, and human—on the Shroud of Turin, which complicates the narrative surrounding this enigmatic relic, believed to be the cloth in which Jesus Christ was wrapped following his crucifixion over 2,000 years ago.

Stretching 4.4 meters long and 1.1 meters wide, the Shroud of Turin is considered one of the most renowned and debated Christian artifacts globally. Its first documented appearance was in France during 1354, after which it resided for nearly 5,000 years in the Basilica of St. John the Baptist in Turin, Italy.

In 1988, researchers conducted radiocarbon dating along with accelerator mass spectrometry techniques, concluding that the Shroud was created between 1260 and 1390. This finding brought into question the identity of the figure depicted on the cloth as Jesus, although many Christian scholars continue to dispute this late medieval dating.

In a 2015 study by Gianni Barcaccia and colleagues from the University of Padova in Italy, material from the artifacts sampled in 1978 was reexamined. The researchers first proposed the possibility that the cloth may have origins in India.

Currently, Mr. Barcaccia—who opted not to be interviewed for this publication—has spearheaded a new analysis of the material from 1978, revealing that the Shroud contains a remarkable spectrum of medieval and modern DNA.

The genetic materials identified include DNA from domestic animals like cats, dogs, chickens, cows, goats, sheep, pigs, and horses, alongside wild species such as deer and rabbits.

Additionally, traces of various fish species such as mullet, Atlantic cod, and stingrays were discovered, as well as marine crustaceans, flies, aphids, and arachnids like dust and skin mites.

Common plant DNA located within the Shroud includes species like carrots, wheat, peppers, tomatoes, and potatoes, suggesting these were possibly introduced to Europe following exploratory voyages to Asia and the Americas.

However, pinpointing the timeline of these contaminating events regarding animals and plants remains elusive.

The research team also isolated human DNA from various individuals who came in contact with the Shroud, notably including those from the 1978 sampling. “The presence of multiple individuals’ DNA complicates the task of identifying the Shroud’s original DNA,” the team noted.

Nearly 40% of the human DNA identified on the Shroud appears to be of Indian origin, possibly resulting from historic interactions or from Romans importing linen from regions near the Indus Valley, report Barcaccia and colleagues.

“The DNA findings on the Shroud of Turin indicate extensive exposure in the Mediterranean area, potentially suggesting that the fabric may have been produced in India,” the researchers articulated.

Anders Goeterström from Stockholm University stated that preliminary studies place the Shroud’s date in the 13th century, a timeframe that is widely accepted in the scientific community. “Despite discussions surrounding the 1988 radiocarbon dating, most researchers find it sufficiently credible,” he explained.

Goeterström remains skeptical about the cloth’s potential Indian origins. He asserts, “There is still no compelling evidence to dismiss that the Shroud is French and dates from the 13th or 14th century,” he concluded.

“This significant relic has its own unique history, which might prove to be more intriguing than its legendary roots lacking scientific backing.”

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Source: www.newscientist.com

Food Supply Shocks from Iran War: Inevitable Impact and Potential Escalation

Food Prices Expected to Surge in Late 2023

dpa picture alliance/alamy

World food prices are reaching unprecedented levels, comparable to the energy crisis of the 1970s. The ongoing conflict in the Middle East is exacerbating inflation, with rising costs for fuel, fertilizers, and pesticides. Are we on the brink of the worst food shock in history?

Many farmers are likely to decrease planting due to soaring costs, possibly leading to food shortages and increased prices later this year. How severe the situation becomes will depend on various factors, including the duration of the conflict and the impact of extreme weather events linked to climate change on crop yields.

“This could escalate into a major crisis for the impoverished and food-insecure,” warns Matin Kaim, a researcher at the University of Bonn, Germany.

“We’re facing a perfect storm. The resolution isn’t straightforward,” states Tim Benton of the University of Leeds, UK. “Even a resolution tomorrow may not yield immediate results, as seen with the post-COVID-19 recovery.”

After decades of decline since the 1970s, global food prices have climbed in real terms since the 2000s, nearing their historic peaks. Climate change intensifies this issue with increasing heatwaves, floods, and storms negatively affecting crop yields, resulting in global food shocks like those observed in 2010. The COVID-19 pandemic and Russia’s invasion of Ukraine have also led to significant price spikes.

Rising biofuel production is contributing to increased food prices, with over 5% of food calories now converted into fuel. Some governments have acknowledged the need to reduce food-based biofuels; however, a report suggests that by 2030, 92% of biofuels will still rely on food sources.

Currently, due to US and Israeli actions against Iran, there’s a significant depletion of essential raw materials for food production and distribution. Fuel, particularly diesel, is crucial as it powers agricultural equipment and transports food. Consequently, higher oil prices directly influence supermarket prices.

Fertilizers, crucial for global food supply, are also facing shortages. “If we halted the use of mineral fertilizers globally, it could lead to widespread hunger,” notes Keim.

Nitrogen fertilizers are produced using hydrogen and atmospheric nitrogen to create ammonia, relying heavily on natural gas for hydrogen and electricity. Qatar, with its abundant natural gas, is a significant fertilizer producer, supplying about 15% of the global urea market. However, due to the conflict, this urea cannot traverse the Strait of Hormuz, thus complicating supply chains.

Countries such as India, Bangladesh, and Pakistan, which produce substantial amounts of their fertilizers from Persian Gulf gas, are facing factory shutdowns due to war-related damages. Additionally, Australia’s main fertilizer facilities are currently non-operational due to an incident.

Consequently, nitrogen fertilizer prices have already surged by over 33% and could escalate further. “If fertilizer costs double, food prices could easily rise by 20 to 30%,” warns Keim.

Beyond urea, Gulf states like Qatar and the UAE are also major sulfur fertilizer producers, essential for various regions and for converting mined phosphates into usable forms for plants.

Urea Fertilizer Readied for Export at Yantai Port, China

CN-STR/AFP (via Getty Images)

Pesticides, essential for safeguarding global food production, are also influenced by rising prices tied to naphtha costs, a fossil fuel derivative used in food packaging.

“In March alone, three of the world’s key naphtha export terminals were targeted in drone attacks,” notes Jide Tijani of Argus Media, UK. These include Russia’s Ustiluga port and facilities in Qatar and the UAE.

The consequences of these developments will likely lead to escalated food prices and a range of other commodities in the coming months and years. “The number of affected markets is staggering,” remarks Jason Hill at the University of Minnesota.

Farmers face increasing costs for fuel, fertilizers, and pesticides, all of which affect their planting decisions. Uncertainties regarding profitability may lead farmers to switch crops or abstain from planting altogether. Speculation and profiteering could further compound price rises, according to Jennifer Clapp at the University of Waterloo, Canada.

How severe could the situation become? The dramatic increases in food prices in the 1970s were partly due to dwindling global food reserves, warns Clapp. While reserves are currently sufficient, prolonged conflict could drastically alter this, especially if abnormal weather caused by climate change negatively affects crop yields.

“There is a substantial chance this could escalate into a crisis of equal or greater magnitude,” Clapp asserts. “Significant climate change could worsen the situation further.”

“Food prices are causing distress across the globe, disproportionately affecting lower-income populations who spend a significant portion of their income on food,” notes Keim.

Additionally, international aid is already diminishing and will likely be further curtailed. “Rising food prices often coincide with increased demand for aid, yet the available funding diminishes as costs escalate,” shares Benton.

This rising tide of food prices may lead to social unrest in the most severely impacted regions, as explained by Paul Behrens at Oxford University. “We’ve observed instability in times of rising food costs throughout history.”

Strategies Nations Can Implement to Mitigate Food Shocks

There are strategies to alleviate the situation. “In Europe, around 15 million loaves of bread are produced daily for biofuel,” points out Behrens, calling it an illogical method for energy generation.

As biofuel production primarily hinges on state incentives, governments can curtail its production to divert more food to markets. “This would make a significant difference,” remarks Keim.

He advocates for an international consensus that limits biofuel production from food sources when prices surge. Unfortunately, such actions have not materialized in past crises.

Instead, nations are likely to ramp up biofuel production to counteract rising fuel prices, which could significantly affect food pricing, according to Keim.

Initiatives are already underway; the United States recently announced an increase in the bioethanol proportion in fuels to mitigate price hikes. Australia is also contemplating similar measures.

However, ramping up food-based biofuels won’t substantially impact fuel prices but will dramatically influence food prices. For instance, a third of corn produced in the U.S. is converted into bioethanol, contributing minimally to gasoline supplies but having a disproportionate effect on food availability, asserts Hill.

“Enhancing ethanol in gasoline harkens back to the 1990s—a policy that fails to address air pollution or climate change,” critiques Simon Donner at the University of British Columbia. “Higher oil prices should instead be seen as an opportunity to transition towards cleaner, more advanced technologies like electric vehicles.”

The global community is unlikely to want a repeat of this supply shock. “This situation poses a significant challenge, raising questions on how to build a more resilient system going forward,” Hill emphasizes.

Accelerating the transition to renewable energy and electric vehicles could leave economies vulnerable to oil price shocks. Furthermore, there’s a need to transform the chemical industry to reduce fossil fuel dependence.

In terms of nitrogen fertilizers, this means generating them from electricity rather than natural gas. “It’s feasible to produce ammonia with zero greenhouse gas emissions,” states Ryan. “The technology exists; the challenge is harnessing enough renewable energy.”

Demand for electricity is surging, especially for data centers supporting AI technology. This scenario is unlikely to improve unless there’s a significant decline in AI development.

In the meantime, there are several ways to optimize fertilizer use. Excessive fertilizer application in many regions leads to runoff into water systems or the release of nitrous oxide, a potent greenhouse gas. Techniques to mitigate overuse include precision agriculture, crop rotation with legumes, and the development of crops that utilize fertilizers more effectively.

“We need to promote a more sustainable farming system,” Keim concludes, highlighting that sustainability does not automatically mean organic practices. A shift to organic farming could dramatically elevate food prices and contribute to deforestation, given the need for additional farmland.

“A fundamental change in our food system is imperative,” asserts Behrens. This includes modifying our dietary habits—favoring protein sources such as beans and legumes over grain-fed meat, which require significant fertilizer input. “This transition could yield substantial benefits,” he emphasizes.

Topics:

  • Eating and Drinking/
  • Agriculture

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Source: www.newscientist.com

Why Olive Oil is the Ultimate Choice for Boosting Brain Health

Olive Oil: A Key Ingredient in a Brain-Boosting Diet

Alexander Prokopenko/Shutterstock

Understanding the health benefits of olive oil is essential, as it not only lowers “bad cholesterol” but also combats inflammation and safeguards against chronic diseases, including various cancers. Recent studies indicate that its advantages may extend to brain health.

What does this mean for cognitive function? Is extra virgin olive oil really necessary, and how much should one consume for optimal benefits? The answers may be more encouraging than you think, as other oils may also support brain health.

It’s important to remember that nutrition research is complex and often unreliable. For instance, participants may struggle to accurately track their food intake, leading to unreliable data. However, some patterns emerge from observational studies, especially when experimental research reinforces these findings.

Olive oil is a fundamental component of the widely acclaimed Mediterranean diet, renowned for promoting health. This diet encourages the consumption of tomatoes, whole grains, fresh fish, and generous amounts of olive oil, occasionally paired with red wine. Numerous studies link this lifestyle to reduced rates of heart disease, type 2 diabetes, and even dementia.

The Mediterranean diet is particularly high in fats, primarily from olive oil, prompting scientists to investigate its specific role. According to nutrition specialist Richard Hoffman from the University of Hertfordshire, England, “The Mediterranean diet is significantly more effective when enhanced by extra virgin olive oil.”

A landmark study in Spain involved over 7,000 participants aged 55 to 80. One group ingested 1 liter of extra virgin olive oil weekly while adhering to a Mediterranean diet. Others either supplemented their meals with nuts or were advised to reduce fat intake.

After five years, participants in the olive oil group exhibited markedly lower instances of heart disease and stroke. Daily consumption of just 10 grams of olive oil correlated with a 10% reduction in cardiovascular disease risk and a 7% decrease in mortality.

Current consensus among scientists suggests that olive oil can mitigate inflammation and enhance cardiovascular health. But how does it affect the brain?

A large-scale study published in 2024 examined over 92,000 adults, evaluating their olive oil consumption every four years for around 30 years. Findings revealed that higher olive oil intake was linked to a lower risk of dementia-related mortality.

Even after accounting for variables like BMI, physical activity, smoking, socio-economic status, and overall diet, a connection remained between olive oil consumption and reduced dementia risk.

Further analysis showed benefits from substituting other fats with olive oil. According to Marta Guasch-Ferré from Harvard University, “Replacing butter or other animal fats with olive oil resulted in an 8-14% decrease in dementia-related mortality risk.”

The Mediterranean Diet: Lowering Disease Risks with Olive Oil

Imaging Ltd./NurPhoto (via Getty Images)

Olive oil’s protective properties for the brain are attributed to polyphenols, which are abundant in this oil. These bioactive compounds shield plants from stress and pests and may do the same for humans by scavenging free radicals, reducing inflammation, and preventing harmful oxidation of fats that can lead to strokes.

Additionally, polyphenols nourish gut microbes, interacting with the immune system to minimize inflammation. Chronic inflammation is a major contributor to significant health issues, including heart disease and dementia, with growing evidence linking Alzheimer’s disease to inflammation in various organs.

According to Guash-Ferré, “Evidence is accumulating to support that olive oil may alleviate Alzheimer’s and other neurodegenerative conditions.”

Which Olive Oil is the Best for You?

It’s essential to differentiate among olive oils. Extra virgin olive oil is the least processed, retaining the most polyphenols. In contrast, virgin olive oil is subjected to more processing, while standard variety is processed extensively, losing many health benefits.

Is the type of olive oil significant? Guasch-Ferré indicates that any olive oil consumption correlates with a lower risk of mortality. The mix of healthy unsaturated fats and beneficial bioactive compounds positions olive oil as a premier plant-based oil.

A recent study explored how different olive oils impacted the microbiome and cognitive health of seniors. It evaluated 656 individuals, revealing that those consuming virgin olive oil showed cognitive improvements. In contrast, participants using standard olive oil experienced cognitive decline. Interestingly, this was linked to changes in the gut microbiome, with specific bacteria mediating some effects.

While this research is preliminary and involved a short follow-up period, it emphasizes the connection between diet, gut health, and brain function.

So what should you take away? While standard olive oil offers some cardiovascular benefits due to its favorable fat profile, extra virgin olive oil provides additional protective compounds. The great news is that other vegetable oils, such as canola and safflower, also contain beneficial fats and moderate polyphenol levels. In substitution models, Guasch-Ferré’s team found no cognitive health drawbacks from these oils compared to animal fats.

“Other vegetable oils can also provide health benefits, especially as they are typically more affordable than olive oil,” she notes. However, further research is warranted for conclusive guidance.

Ultimately, select the highest quality extra virgin olive oil that fits your budget. Although if that’s not feasible, replacing animal fats with other vegetable oils is a beneficial step toward brain health. If you aim for premium quality, pay attention to storage; light reduces polyphenol levels over time, so choosing a dark bottle is advisable for optimum health advantages.

I’m willing to invest a little more in high-quality extra virgin olive oil, not only for its rich flavor but also for its profound brain-health benefits.

Topics:

  • Neuroscience /
  • Nutrition

Source: www.newscientist.com

How Immune System Attacks Contribute to Prolonged Coronavirus Infections

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Exploring autoimmune responses during coronavirus infections

Science Photo Library

Emerging research indicates that prolonged COVID-19 infections may stem from the immune system attacking healthy tissue. Insights from four recent studies highlight autoimmunity as a potential contributor, especially in cases where intense pain is a prominent symptom.

This revelation could pave the way for urgently needed treatments, currently non-existent in the UK and US. “We must explore removing antibodies from patients to see if symptoms abate,” asserts Niels Eikelkamp from Utrecht University, Netherlands.

<p>While most individuals infected with SARS-CoV-2 recover swiftly, a subset experiences prolonged symptoms lasting months or years. Common complaints include fatigue, chronic pain, brain fog, and excessive tiredness following minimal exertion.</p>
<p>Researchers have pinpointed various potential mechanisms behind long COVID, such as persistent SARS-CoV-2 presence and gut microbiome dysfunction. These factors may be involved in diverse combinations within individuals, complicating the search for effective universal treatments.</p>
<p>A frequently discussed mechanism is autoimmunity, in which the immune system mistakenly targets the body. Typically, antibodies are designed to eliminate pathogens; however, autoantibodies can erroneously attach to the body’s own cells.</p>
<section></section>
<p>Initial indications of autoantibodies playing a role in prolonged COVID-19 cases emerged from studies conducted in 2023. Apheresis treatments on individuals with long-term coronavirus infection showed reductions in autoantibody levels and improvements in symptoms, yet the exact substances responsible remain undetermined due to the broad spectrum of removals.</p>
<p>Eikelkamp and his team now provide robust evidence that autoantibodies can prolong COVID-19 symptoms. Their 2022 study involved 34 participants experiencing long COVID, and 15 who had recovered. The focus was on immunoglobulin G (IgG) antibodies, which were administered to mice.</p>

<p>Mice injected with IgG from long COVID patients displayed heightened sensitivity to touch and pain, removing their paws from hot surfaces more quickly than those who received antibodies from non-long COVID participants. Eikelkamp noted that this aligns with symptoms reported by long COVID patients.</p>
<p>In 2024, the team repeated the experiment with IgG from 19 long COVID patients, confirming similar results. "These autoantibodies persist in the patient’s body," comments <a href="https://www.unamur.be/en/profil/nicaisec">Charles Nicaise</a>, who participated in another study from the University of Namur, Belgium.</p>
<p>This aligns with findings from three other preliminary studies. One led by <a href="https://medicine.yale.edu/profile/akiko-iwasaki/">Akiko Iwasaki</a> at Yale University found elevated autoantibody levels in patients with both long COVID and neurological symptoms. Mice injected with these antibodies also exhibited similar pain and balance issues.</p>
<p>The two remaining studies, published in November 2025, found that mice injected with IgG from long COVID patients demonstrated decreased skin nerve fiber density, indicating nerve damage, and heightened sensitivity to cold and touch.</p>

<p>Ongoing research by Nicaise's team has found that IgG from long COVID patients leads to increased pain sensitivity in mice, with IgG accumulating around neurons involved in relaying sensory information, especially pain.</p>
<p>To transform these findings into effective treatments, it's crucial to identify which specific types of IgG are implicated in symptoms. Iwasaki's experiments have spotlighted two particular target proteins, MED20 and USP5.</p>
<p>Furthermore, it's essential to assess whether removing or inhibiting the activity of these autoantibodies alleviates symptoms. <a href="https://www.amsterdamumc.org/en/research/researchers/brent-appelman">Brent Appelman</a> from Eikelkamp’s team studies the effects of filtering these autoantibodies from patients' blood. While Eikelkamp acknowledges that apheresis isn’t a permanent solution—requiring hospital visits every few months—he views it as a promising proof of concept paving the way for more advanced medical therapies.</p>

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Source: www.newscientist.com

Tobacco Factory Transformed to Manufacture Five Hallucinogenic Substances

Genetically Modified Tobacco Plants Yield Five Psychedelic Compounds

Aharoni Laboratory, Weizmann Institute of Science

Researchers at the Weizmann Institute of Science have transformed tobacco plants to produce five powerful psychedelic compounds typically derived from other plants and fungi. This innovative approach is argued to be more sustainable and efficient, facilitating the research of therapeutic applications and future medicinal production.

Asaf Aharoni and his team utilized a technique known as agroinfiltration, where bacteria are utilized to introduce genes from various organisms into benthamiana tobacco. Although this method results in temporary production of desired proteins, as the DNA isn’t integrated into the plant’s genome, it serves as a stepping stone in biotechnology.

By introducing nine specific genes, the modified plants are capable of producing psilocin and psilocybin, compounds found in certain mushrooms, alongside DMT, bufotenine, and 5-methoxy-DMT, which are derived from plants and Colorado River toads (Incilius Alvarius).

Though permanent genetic modifications could be devised for these plants, Aharoni notes the complications due to the recreational nature of the generated compounds: “It’s challenging to inherit the traits, yet demand for seed may arise.” Similar methods had been applied to tomatoes, potatoes, and corn.

The medical landscape for psychedelic compounds is gradually evolving. Aharoni highlights that while harvesting these substances from nature poses a risk of depleting habitats, the cultivation of tobacco in controlled environments would mitigate this concern and streamline production for research.

The strategy of “pharmaceutical agriculture” isn’t a novel concept. The United States approved plant-derived protein medicines in 2012, and by 2002, corn was engineered to produce pharmaceutical proteins. Noteworthy, a 2022 study revealed that tobacco can also synthesize cocaine, yielding about 400 nanograms per milligram of dried leaves—substantially lower than coca plants.

According to researchers like Rupert Frey, approximately 25% of prescription medications are derived from plants, highlighting the potential for “green factories” where new compounds are cultivated in greenhouses. Frey asserts, “Understanding how to create these compounds is vital, demonstrating the capabilities of a tobacco-based system.”

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Source: www.newscientist.com

Why Are Oceans Becoming Darker? Exploring the Global Changes in Ocean Color

Estuaries along the coast of Guinea-Bissau branch out like a network of plant roots, with the river transporting water, nutrients, and sediment toward the Atlantic Ocean. This Landsat 8 image captured on May 17, 2018, showcases the movement of sediment, particularly visible on the Rio Geva near Bissau.

At dusk, a massive transfer of biomass occurs in the oceans, as trillions of tiny creatures like zooplankton, krill, and lanternfish rise from the depths, drawn by phytoplankton blooms. This nocturnal feeding frenzy is crucial for marine ecosystems, as these creatures avoid predators who hunt visually, diving back down at dawn.

Solar and lunar cycles dictate marine behavior, yet recent observations show that large areas of the ocean have darkened. Tim Smith, a marine scientist at the Plymouth Marine Research Institute, has been at the forefront of this research, studying the impact of global warming and land-use changes on ocean light dynamics.

Smith told New Scientist about the causes and implications of ocean darkening, exploring ways to enhance light penetration into underwater habitats.

Thomas Luton: How did you first notice the darkening of the ocean?

Tim Smith: We approached this issue from a unique perspective. For the last decade, I’ve collaborated with Tom Davis, focusing on the effects of artificial light pollution. Analyzing two decades of global satellite data revealed a consistent darkening pattern in the ocean, suggesting an increase in surface water opacity which affects well-connected expansive regions rather than isolated patches. About one-fifth of the world’s oceans have experienced some form of darkening.

What causes ocean darkening?

In coastal areas, river changes significantly impact ocean coloration. Alterations in land use directly influence what enters rivers, thereby transforming the optical properties of ocean water. Flood events can greatly increase the influx of suspended particulates and colored dissolved organic matter, contributing to the characteristic “steeped tea” color.

An additional driver of ocean darkening is nutrient loading, where fertilizers from agricultural runoff stimulate phytoplankton growth, reducing light penetration. Although coastal waters have been recognized as darkening for some time, the phenomenon is now extending into the open ocean.

Tim Smith studies the impact of land-use change and global warming on ocean dynamics.

Krave Getsi

What factors lead to changes in the open ocean?

These changes may correlate with the abundance of phytoplankton driven by climate change, such as rising ocean temperatures and increasing frequency of marine heatwaves. Climate alterations influence vast ocean circulation patterns significantly.

The proliferation of phytoplankton relies on a mix of light, nutrients, temperature, and water column dynamics. In winter, storms typically mix the ocean, but as spring arrives, a stable surface layer forms. These layers limit vertical mixing and enhance light and nutrient concentration, fostering phytoplankton growth.

I suspect that we’re witnessing a complex interplay between shifts in global circulation patterns and localized weather phenomena, such as clearer skies that promote phytoplankton growth. This combination may contribute to the widespread darkening of the open ocean.

What impacts does ocean darkening have on marine ecosystems?

To understand this better, consider the ocean’s food chain. Phytoplankton, the primary producers, experience the first effects of darkening. The next tier includes zooplankton, like Calanus copepods, which serve as a critical link in the food web and engage in diurnal vertical migration, moving up and down daily for feeding.

Zooplankton are a key component in the food web adversely affected by ocean darkening.

Flor Lee/Getty Images

During the day, they dive to depths of 200 to 300 meters where light is scarce, eluding visual predators. By night, they ascend in search of food. This behavior represents the largest biomass transfer on Earth, as millions of zooplankton migrate invisibly through the water, significantly outnumbering the terrestrial migrations like the Serengeti wildebeest.

What occurs when light cannot penetrate deep underwater?

The existence of dark regions in the ocean restricts the vertical habitat for species, which could lead to heightened competition for food and space. Some species may expend less energy hunting, impacting predation dynamics and thus altering food webs and global fishery productivity.

Fish species that rely on sight, including both small schooling fish and large predators like tuna, will find their hunting zones confined to the shallows. Simultaneously, phytoplankton may face altered depths for photosynthesis due to decreasing light availability.

Is nighttime ocean darkness still a concern?

Absolutely. Beyond sunlight, moonlight plays a crucial role in nocturnal migrations of many marine creatures. While the ocean appears nearly black at night to humans, the moon’s dim glow has significant implications for guiding species during foraging and return to deeper waters.

Our lunar models indicate that as ocean clarity decreases, moonlight’s penetration diminishes, which may compress the nighttime habitat, dramatically shifting ecological interactions in darkness.

What is the global impact of these changes?

Ocean darkening could profoundly affect the carbon cycle as well. If zooplankton cannot dive as deeply to evade predators due to limited light, their efficiency in pulling carbon from the atmosphere diminishes. When zooplankton perish, they normally sink and trap carbon deep in the ocean; without the ability to dive, much of this carbon may remain in the upper layers, ready to be re-released into the atmosphere.

However, assessing how carbon moves from the illuminated surface to the ocean floor remains complex. Satellite data provides a global perspective, but it offers only a glimpse into dynamics at work.

Is there a way to combat ocean darkening?

In certain areas, yes. Coastal waters are especially vulnerable to terrestrial activities, particularly agricultural runoff. By managing land better, including practices such as reducing fertilizer usage, we could restore some clarity to coastal waters. Initiatives like the AgZero+ program led by the UK Center for Ecology and Hydrology encourage collaborative efforts with farmers to develop eco-friendly farming techniques, thereby minimizing runoff and enhancing water quality. Strategies like improved fertilizer management and agroforestry could substantially mitigate the darkening of coastal waters.

Nevertheless, addressing the drivers of darkening in the open ocean is far more challenging. Even if global emissions halt immediately, ecological responses would take decades, potentially centuries.

Is there hope for the seas?

Absolutely. Evidence shows that marine environments can exhibit remarkable resilience when given a chance. Protected marine ecosystems can recover swiftly. For instance, kelp forests off California rebounded rapidly in well-managed reserves after a severe marine heatwave between 2014 and 2016.

This resilience has led to a global push to expand marine protected areas, which can act as ecological refuge zones, helping to rebuild vital marine life and restore ecological equilibrium. Such measures are crucial in the face of climate stressors like heatwaves.

There is optimistic news: the ocean exhibits extraordinary self-repair capabilities. With adequate protection and time, marine ecosystems can respond swiftly, crucial for all life on Earth. The oceans, covering about 70% of the planet, play a significant role in climate regulation and carbon absorption, underscoring the need to protect this invaluable life-support system.

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Source: www.newscientist.com

Quantum Computers: Unlocking Their Secrets is Closer Than You Think

Google’s Willow Quantum Computer

Credit: Google Quantum AI

Quantum computers capable of breaking internet security codes are rapidly approaching reality. Discoveries from two research teams highlight the strides being made, indicating that current quantum machines are already over halfway to the necessary scale.

Both studies focus on cryptographic methods centered around the Elliptic Curve Discrete Logarithm Problem (ECDLP)—a mathematical challenge ideally suited for data encryption. ECDLP has been widely adopted for securing internet communications, including banking transactions and major cryptocurrencies like Bitcoin.

While classical computers struggle to breach elliptical curve-based codes, it has been understood since the 1990s that quantum computers possess the ability to do so. However, building a sufficiently powerful quantum computer seemed a far-off challenge due to engineering limits.

Recent advancements in both theory and engineering have drastically accelerated this timeline. Theoretical research has led to optimized quantum hacking algorithms, significantly lowering the required quantum computing power. For instance, in 2019, estimates indicated a need for 20 million qubits to crack a related encryption system called RSA-2048; by February, that figure plummeted to just 100,000 qubits.

Furthermore, while the most sophisticated quantum computers in 2019 barely exceeded 50 qubits, today’s leading machines have surpassed 1,000 qubits, with the largest unused qubit array containing 6,100 qubits.

Currently, Dorev Bruchstein and his team suggest that ECDLP could require machines with only 10,000 qubits. Though this decoding would still take years, Ryan Babush and his colleagues from Google’s Quantum Research division have shown that just 500,000 qubits could perform the task in as little as nine minutes.

“Today marks a significant moment for quantum computing and cryptography,” says Justin Drake of the Ethereum Foundation, which collaborates with researchers at Google. He shared this insight via social media.

Bruchstein’s estimates are based on qubits formed from ultracold atoms manipulated by lasers, providing increased connectivity that likely reduces the number of required qubits.

Bruchstein envisions a potential array of 10,000 ultracold qubits being realized within a year, yet controlling and operating them with precision will be a significant challenge. Proper interaction between qubits is critical, eliminating the possibility of merely linking multiple existing machines together.

Bruchstein anticipates that a fully operational quantum computer may not be available until the decade’s end. “We’re making substantial progress, but it’s beginning to feel feasible to build,” he explains.

Concerns Over Cryptocurrency Security

The Google team derived their conclusions based on a different type of quantum computer using superconducting circuits. These quantum systems are often viewed as more advanced, and Google prioritizes their development.

The researchers have refrained from commenting publicly about the study. However, the paper indicates that “resource estimations could be dramatically lowered with more aggressive hardware capabilities,” implying that the 500,000 qubit target might be conservative. Notably, they refrain from providing details about the decryption algorithm for security reasons.

They also indicate that such quantum computers could potentially intercept cryptocurrency transactions and reroute funds for a brief period before recording, effectively enabling theft.

Given the findings from both studies, it’s clear that Bitcoin may be more susceptible to quantum attacks sooner than previously understood, according to Scott Aaronson from the University of Texas at Austin.

Stefano Gozioso from the University of Oxford notes that both configurations of quantum computers encounter substantial engineering hurdles before practical application is achievable, particularly the ultracold atom method, which is still largely experimental. He emphasizes the growing urgency for security in the digital realm.

Some internet browsers already implement encryption impervious to quantum attacks, termed post-quantum cryptography (PQC). While traditional banking systems may adapt post-attack, a decentralized cryptocurrency framework might be far more vulnerable, according to Gozioso. Google suggests that organizations transition to PQC by 2029 as the need intensifies.

“This is precisely why we initiated the PQC standardization project over a decade ago,” states Dustin Moody from the National Institute of Standards and Technology (NIST). “We anticipated that advancements in quantum hardware would coincide with algorithmic progress.”

NIST has identified several PQC algorithms with the potential to become future security standards as practical quantum computers emerge, with the U.S. federal government targeting a transition by 2035. However, Moody warns that organizations should act promptly. “These studies reinforce that the window for migration is limited, making immediate action imperative,” he concludes.

Topics:

  • Safety/
  • Quantum Computing

Source: www.newscientist.com

Male Octopuses Prefer Specific Arms for Mating: Here’s Why

Male Octopus (Amphioctopus fangsiao) with Curled Hectocotylus (Upper Left)

Photo by Keijiro Haruki

For male octopuses, protecting a specific arm is crucial. This pivotal appendage, known as the hectocotylus, has a distinct role in reproduction, which makes its preservation vital.

Recent research led by marine biologist Keijiro Haruki from Nagasaki University sheds light on the lengths male octopuses go to safeguard this indispensable limb from damage or predation.

Haruki initiated the study by gently prodding a male octopus’s arms. He observed significant resistance from the octopus whenever he touched its hectocotylus: “This reaction indicated how much this arm matters to male octopuses, akin to how human males react when threatened.”

The hectocotylus (designated R3) of male octopuses is anatomically unique compared to the other seven arms, specifically designed for sperm transfer during mating.

Male octopuses possess a single testicle situated within the mantle (the bulbous part at the rear of the head), where sperm are produced and stored in structures called spermatophores.

During mating, the male octopus inserts the tip of his hectocotylus into the female. Before ejaculation, the hectocotylus is rolled into a tubular shape, allowing the male to force water through it and push the spermatophore into the female.

To understand how octopuses safeguard their essential third arm, Haruki’s team studied 32 male and 41 female pygmy octopuses (Octopus Parvas).

Among the sample, 13 females were missing their R3 arm, but only one male lacked this vital appendage. Various experiments compared the usage of R3 between genders.

Male Octopus Parvus Exploring During Experiment (Lower Right)

Photo by Keijiro Haruki

The first experiment involved placing a lead weight in the center of an aquarium to observe how the octopuses used their limbs to investigate. It was found that significantly more females than males employed their R3 arm to explore the novel object.

In a subsequent test, frozen shrimp were presented in a box within the tank. Males exhibited a tendency to explore with their other seven arms far longer before risking the use of their hectocotylus.

Haruki concludes that this elaborate arm usage system likely evolved because safeguarding one specialized arm is less costly than enlarging the male’s penis.

When a male loses R3, his mating activity halts until a new one regenerates, which can take several months. Nevertheless, Haruki notes that such losses are rare, indicating that males effectively protect this crucial arm from harm.

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Source: www.newscientist.com

Is Plug-In Solar Worth the Risk? A Comprehensive Guide to Its Benefits and Drawbacks

Plug-in solar panels on balcony

Easily Installed Plug-in Solar Panels for Your Balcony

Image Credit: imageBROKER.com / Alamy Stock Photo

The global growth of solar energy generation is remarkable. In just 15 years, the costs associated with solar power installations have plummeted by 90%, now comprising over 90% of the costs for setting up solar systems.
This surge now represents around 80% of the world’s new power capacity each year.
As oil and gas prices surged due to conflicts in the Middle East, solar power emerged as a logical alternative for numerous countries.

In the UK, instead of sticking to the old methods, the government plans to legalize a previously banned form of solar energy generation.
“This will be available within months.”
Through local shops and supermarkets.

These plug-in solar systems are user-friendly: bring the panel home, place it in a sunny location, and simply plug it in. There’s no installation cost and you can immediately start generating solar energy for your home. If you relocate, just take the panels with you, making solar energy increasingly affordable and accessible.

Many nations have already adopted plug-in solar technology with high expectations for its global impact. However, critical questions remain: Will it actually reduce energy costs? How affordable is it? Is it safe?

Despite declining costs, traditional solar installation remains costly. For example, average estimates for UK homes indicate:
A 4-kilowatt solar system capable of meeting most energy needs costs around £7,000.
In the U.S., average households use approximately double that amount of energy.
Installing a sufficient solar power system costs about $20,000.
These prices include professional installation and necessary changes to your electrical system. This may lead to reduced energy bills and even potential profits by selling back excess energy to the grid.

Plug-in solar is a more straightforward solution. With smaller kits, you can acquire an 800-watt system for roughly £400, which could supply about 20% of the average UK household’s energy needs. Installation is quick and easy—you attach the panels to a balcony railing or garage roof and plug it into an outlet to start generating energy.

While excess energy returns to the grid, without professional installation, you won’t earn from it. As noted by Mark Golding, a British solar panel installer at Spirit Energy, “essentially that energy just benefits the neighbor.”

Plug-in solar technology has already made inroads outside the UK, with over 1 million systems installed in countries like
Germany
, where as of July last year, it had a total capacity of 1.6 to 2.4 gigawatts—enough to boil 500,000 kettles all at once.

Germany is currently the only country effectively tracking plug-in solar systems, making statistical information scarce. However, estimates suggest up to
5 million kits are in use across Europe
. Though small in the overall energy mix, these systems can lower individual energy bills and cumulatively boost renewable energy output countrywide.

Jan Rosenau
, a researcher from Oxford University, believes adoption rates could increase if governments continue to allow personal installations. He asserts, “Though each system is small, their collective impact on distributed generation and public involvement in the energy transition is significant.”

Currently, many plug-in panels remain illegal in the U.S., but Utah has become the first state to legalize their use. Numerous other states are following suit.
A similar bill is underway.
According to Cola Stryker from BrightSaver, a U.S. solar non-profit, individuals outside Utah face excessive bureaucratic hurdles to install a few panels compared to those developing large-scale solar farms, marking a dubious situation.

Stryker anticipates that plug-in solar could alleviate financial stress, contribute to climate change mitigation, and pave the way for significantly wider adoption of renewable electricity across the U.S. “This could mark a critical turning point, allowing the benefits of renewable energy costs to be accessible to consumers,” she predicts. BrightSaver estimates that by 2035, 24 million U.S. households could utilize plug-in solar solutions.

Is Plug-in Solar Safe?

Despite its widespread use, safety experts express concerns over plug-in solar kits.
Mark Coles
from the Institute of Engineering and Technology (IET) suggests that consumers check their home’s wiring before purchasing a system. Moreover, several areas of concern have been noted.

One issue is the potential ineffectiveness of residual current devices (RCDs). RCDs, which help prevent electric shocks and short circuits, may not be equipped for split current flows. In the U.S., there are similar concerns. Germany’s rapid advancements were aided by the standardization of two-way RCDs in the 1980s.

Another concern raised by the IET is related to systems that operate multiple kits during a power outage. Plug-in setups should ideally shut down; however, if they continue generating energy, this may confuse devices into thinking that grid power is still available, posing risks for electrical workers during repairs due to potential electrocution.

“This places maintenance personnel at risk,” Coles comments. “This contradicts the ‘just buy and plug in’ idea, but the reality is that public safety risks are present.”

While Coles acknowledges the advantages of plug-in solar, he emphasizes the necessity for manufacturers to demonstrate the safety of their products in unusual circumstances.

New Scientist
reported that the Department for Energy Security and Net Zero maintains that their testing shows plug-in solar systems can be safely used with domestic circuits within the UK. All products must align with UK product safety regulations, and an independent review is underway to determine further guidelines before sales commence.

Stryker asserts that the greatest risk lies in the decision to do nothing amid the escalating effects of climate change and rising energy costs affecting many households. She believes public adoption of this technology will occur regardless of formal approval, stressing that the priority should be ensuring public safety. “Solar energy is the most affordable energy available globally, and it’s the cheapest energy ever produced by humanity,” she concludes.

Topics:

  • solar power/
  • renewable energy

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Source: www.newscientist.com

Uncovering the Link: Marine Animal Virus Linked to Unusual Eye Issues in Humans

New Scientist: Featuring science news and expert coverage of developments in science, technology, health, and the environment.

A virus traditionally affecting marine life is causing glaucoma-like symptoms in humans.

Virginie Vaes/Getty Images

A newly identified virus typically affecting marine animals has led to alarming glaucoma-like symptoms, including irreversible vision loss, in a handful of individuals in China. This marks the first documented instance of an aquatic virus infecting humans and resulting in serious health complications. The infections are believed to have occurred through consumption of raw seafood or handling aquatic creatures, with some evidence suggesting possible human-to-human transmission.

“It’s astonishing that this virus is capable of infecting invertebrates, fish, and mammals,” says Edward Holmes, a researcher at the University of Sydney. “I cannot recall any virus exhibiting such a broad host range.”

Cases of persistent ocular hypertension viral anterior uveitis (POH-VAU), characterized by inflammation and increased eye pressure leading to optic nerve damage, are escalating in China. To delve into the triggers behind this spike, researchers from the Chinese Academy of Fisheries Sciences in Qingdao evaluated 70 patients diagnosed with the condition between January 2022 and April 2025.

The research team tested these individuals for the latent and lethal nodavirus, which commonly infects various marine species; remarkably, all 70 tests returned positive. “Up to this point, viruses from aquatic animals have not been shown to cause illness in humans directly,” the researchers stated, though they declined to provide further commentary. Despite treatment aimed at reducing inflammation, a significant portion of subjects required surgical intervention, with one case resulting in irreversible vision loss.


In an effort to better understand the virus, the research team infected mice, which exhibited marked pathological changes in the cornea, iris, and retina within a month. They also observed that the virus could spread among mice sharing water.

Of those studied, more than half owned aquatic animals, highlighting a potential source for the infection. However, approximately 16% reported consuming raw seafood or had close ties with high-risk groups.

While there is no definitive proof of human-to-human transmission, an epidemiological study revealed a distinct subgroup of urban POH-VAU patients with no direct contact with aquatic animals or other risk factors, apart from close interactions with family members. These relatives, who are at a heightened risk for the latent nodavirus, have experienced hand injuries during handling of aquatic animals, implying that the virus may transmit within households, potentially via shared utensils.

To gauge the virus’s prevalence, researchers evaluated 523 captive and wild aquatic animals across Asia, the Americas, Europe, Antarctica, and Africa, concluding the global presence of this hidden and deadly nodavirus. They identified it in 49 species, including shrimp, crabs, fish, and barnacles, resulting in symptoms like lethargy and color loss; yet the reasons behind its ocular effects in humans remain unclear.

Holmes emphasized the potential ubiquity of this pathogen: “I suspect it is much more prevalent than currently recognized. I wouldn’t discount the possibility it first passed through another species, possibly a mammal.”

The virus may also propagate among marine organisms consuming infected animals. For instance, researchers found that farmed shrimp often consume frozen brine shrimp or Antarctic krill, potentially resulting in infections. Moreover, the introduction of this virus into warmer waters has led to increased infections in marine life, suggesting that Antarctic species may serve as reservoirs for pathogens without displaying illness themselves.

Researchers warn that the transmission of this elusive and deadly nodavirus from marine life to humans presents new biosecurity threats. Nonetheless, Holmes reiterates the absence of clear evidence for human-to-human transmission, stating, “This is not regarded as a contagious disease.”

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Source: www.newscientist.com

Historians Debate Drought and Rebellion Connections in Roman Britain

Hadrian’s Wall: Ancient Roman Boundary

Hadrian’s Wall: A Boundary of Roman Britain

Historic England/Heritage Images/Scientific Photo Library

Recent studies are sparking debate among researchers regarding whether droughts in late Roman Britain triggered conflicts. While climatologists present evidence linking droughts to civil unrest and violence, historians challenge the accuracy of this interpretation, citing misinterpretations of vital historical documents.

This ongoing debate underscores the complex challenge of integrating historical climate data into the broader historical narrative. “This is a recurring theme,” notes Dagomar DeGroot, a climate historian at Georgetown University in Washington, D.C.

In a recent study, Wolf Bungen and geographers from the University of Cambridge examined tree-ring data from oak trees across southern England and northern France, reconstructing climatic conditions from 288 AD to 2009.

They identified a sequence of intense summer droughts in southern England between 364 and 366 AD, correlating this period with the “Barbarian Conspiracy” of 367 AD—a series of military defeats inflicted on the Roman Empire by British and Irish warriors, including the abduction of high-ranking commanders. Although the Empire eventually reestablished its dominance, it gradually retreated from Britain over the subsequent fifty years. Bungen and his team argue that these droughts caused food shortages, prompting revolts against Roman rule.

Moreover, they extended these findings across the Roman Empire, analyzing 106 battles alongside tree-ring data from Europe, revealing that battles were more frequent following dry summers and extremely hot years.

The implications of this study received significant media attention, with coverage from BBC News, The Guardian, and The Telegraph.

However, a contrasting perspective emerged from another research team in a critical response published in the journal Climate Change. “We believe the issues within this study warrant scrutiny,” remarks Helen Foxhall Forbes, a historian at the Ca’ Foscari University of Venice, Italy.

While acknowledging the intrigue of climate data on historical events, Forbes critiques the interpretations of historical and archaeological references in Bungen’s team’s work.

According to Forbes, the only contemporary account of these conflicts comes from the Roman historian Ammianus Marcellinus, who documented Roman history from 330 to 400 AD, and whose writings on the barbarian uprisings remain fragmented. Her examination of Ammianus’s work concludes that his references to the “barbarica conspiracy” could imply an organized rebellion or simply conflict and unrest.

Furthermore, Forbes points out Ammianus’s description of the British as being in an “Ultimum…Inopium” state—interpreted as complete helplessness—which might allude to starvation or other crises. She argues that Ammianus’s reference to this state is a result rather than a cause of the conspiracy.

Bungen’s team has defended their position in a follow-up publication in Climate Change, highlighting previous research interpretations of Ammianus’s terminology, such as Inopium and barbarica conspiracy.

Another concern raised by critics pertains to the lack of consistency in their battle database, wherein varying types of conflict—from formal battles to civil disturbances—are represented. According to Dan Lawrence, an archaeologist at Durham University, the implications of drought-induced food shortages might incite riots, but solid evidence to support such a narrative is needed.

“The research team lacked a historian on their roster,” states Foxhall-Forbes. Although Bungen’s team included archaeologists, expertise in late Roman Britain was absent.

Bungen has emphasized his commitment to interdisciplinary work, incorporating input from archaeologists specializing in the Roman Empire. He expressed a desire for constructive dialogue and collaboration with researchers who can reinterpret or expand upon their findings. He also noted that frequent research on climate change and history tends to overlook ecologists, who play a pivotal role in understanding agricultural responses to climatic shifts. “This is often where research remains ambiguous,” he remarks.

DeGroot, who did not participate in this review, acknowledges the absence of historical context in this study as a significant shortcoming but maintains that the core findings related to tree-ring data remain valuable for historical inquiries. “We know that the drought likely occurred,” he states. “We can further investigate whether droughts indeed influenced societal violence through case studies.”

DeGroot reflects on the tension between “minimalist” and “maximalist” historical interpretations. Minimalists focus primarily on specific events, often reluctant to generalize, while maximalists strive to identify overarching trends in fragmented data sets. “While they can reveal previously unconsidered forces, often their conclusions may stem from shaky foundations,” he observes.

Walking Through Hadrian’s Wall: Discover Roman Innovations in England

Embark on an immersive walking tour along Hadrian’s Wall, one of Britain’s most iconic ancient landmarks and a UNESCO World Heritage Site, tracing the footsteps of the Romans.

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Source: www.newscientist.com

The Best Olive Oil for Brain Health: Which Type Should You Choose?

Olive oil - a brain-boosting diet

Is Extra Virgin Olive Oil the Best Choice for Brain Health?

Alexander Prokopenko/Shutterstock

Olive oil is renowned for its health benefits, including lowering “bad cholesterol,” combating inflammation, and protecting against chronic diseases such as cancer. New evidence also suggests olive oil positively impacts brain health.

I explored how olive oil could enhance cognitive function. Is extra virgin olive oil really essential? How much do we actually need?

Surprisingly, olive oil may not be the only oil with brain health benefits.

All nutrition research has its challenges, often relying on food diaries that participants may inaccurately report. Therefore, definitive studies can be rare.

However, observable patterns can still emerge from observational studies complemented by biological experiments, helping us understand the health impacts of various foods.

Olive oil’s popularity skyrockets largely due to its pivotal role in the Mediterranean diet, widely regarded as one of the healthiest dietary patterns. This diet encourages the consumption of fresh vegetables, fish, and olive oil, along with occasional red wine, correlating with reduced rates of heart disease, type 2 diabetes, and dementia.

While the Mediterranean diet is high in fat, most of it comes from olive oil. As nutritionist Richard Hoffman points out, “The Mediterranean diet’s effectiveness is amplified when extra virgin olive oil is included,” highlighting its significant role.

A pivotal study involving over 7,000 Spanish participants aged 55 to 80 examined the effects of olive oil on heart health. One group received 1 liter of extra virgin olive oil weekly and was encouraged to consume 4 to 5 tablespoons daily. In contrast, other groups replaced olive oil with nuts or reduced their overall fat intake.

Over five years, those who consumed olive oil showed lower rates of heart disease and stroke, achieving a 10% reduction in cardiovascular disease risk for every 10 grams consumed daily.

While olive oil’s anti-inflammatory and cardiovascular benefits are clear, what does it mean for the brain?

The upcoming large-scale study set for 2024 analyzed data from over 92,000 adults regarding olive oil consumption tracked across nearly 30 years. Results indicated a lower risk of dementia-related mortality among regular olive oil consumers.

While healthier lifestyles typically correlate with higher olive oil intake, controlling for variables such as BMI, activity level, and overall diet still showed a strong association with reduced dementia risk.

Moreover, replacing other fats with olive oil provided additional benefits; researchers found an 8 to 14 percent reduction in dementia risk when substituting a teaspoon of margarine or mayonnaise with olive oil, according to Marta Guasch-Ferré from Harvard University.

Olive Oil: A Vital Component of the Mediterranean Diet

Imaging Ltd./NurPhoto (via Getty Images)

Olive oil exhibits protective effects on the brain, primarily due to its rich content of polyphenols, the highest among edible oils. These compounds protect plants and humans from various stressors, reduce inflammation, and prevent harmful fat oxidation leading to plaque formation.

Polyphenols also nourish gut microbes, supporting a healthy immune system and mitigating inflammation. Chronic inflammation is linked to major health issues, including heart disease and dementia, suggesting that Alzheimer’s could stem from inflammation in distant organ systems.

“Growing mechanistic evidence indicates that olive oil may alleviate the underlying pathology of Alzheimer’s and similar neurodegenerative diseases,” says Guash-Ferré.

Choosing the Right Olive Oil

All olive oils are not equal. Extra virgin olive oil is the least processed variety, preserving polyphenols. Virgin olive oil is slightly more refined, while standard olive oil undergoes further processing, stripping it of many beneficial properties.

Is there a significant difference in health benefits among these types? “Consumption of any type of olive oil correlates with a lower mortality risk,” Guash-Ferré states. The blend of healthy fats and bioactive compounds makes olive oil a top choice among plant-based oils.

However, recent research from January revealed intriguing insights comparing various olive oils’ effects on the microbiome and cognitive function in older adults. The study involving 656 overweight participants with metabolic syndrome demonstrated that those consuming more virgin olive oil exhibited cognitive improvements, while standard olive oil users faced accelerated cognitive decline.

The beneficial impacts are associated with shifts in microbial diversity; those drinking virgin olive oil saw increased diversity, whereas standard olive oil led to reduced diversity, with a specific bacterial group, adlerkreuzia, mediating about 20% of virgin olive oil’s cognitive effects.

Although this preliminary study is small and short-term, it hints at a captivating relationship between diet, gut bacteria, and brain health.

What does this mean for us? While standard olive oil provides health benefits, especially for heart health, extra virgin olive oil offers an added dimension through its polyphenols that may safeguard brain function.

The good news for your wallet is that the health benefits aren’t exclusive to olive oil. Other plant-based oils like canola and corn also contain healthy fats and moderate polyphenol levels. Guash-Ferré’s team found no additional brain health benefits when replacing olive oil with these oils; instead, they emphasized that while olive oil is beneficial, other vegetable oils are also acceptable alternatives.

“Incorporating other vegetable oils can be a healthy substitute for animal fats and are generally more affordable,” she cautions, yet further studies are necessary to bolster these findings.

The simplest advice? Opt for the highest quality extra virgin olive oil you can afford. If that’s not feasible, replacing animal fats with other vegetable oils still promotes brain health. It’s also wise to consider packaging; light can diminish polyphenol levels, so choose dark bottles when possible to preserve health benefits.

I confidently invest in high-quality extra virgin olive oil, not just for its exquisite flavor but also for its potential cognitive advantages.

Topics:

  • neuroscience /
  • Eating and drinking

Source: www.newscientist.com

Astronauts Gear Up for Artemis II Mission to Return to the Moon

Artemis II astronauts and Space Launch System rocket

Meet the Artemis II Astronauts and the Space Launch System Rocket at Cape Canaveral, Florida

Bill Ingalls/NASA/Getty Images

The highly anticipated Artemis II mission is set to launch as early as April 1, 2024. This groundbreaking NASA mission will mark the first crewed journey to orbit the Moon since 1972, allowing astronauts to capture stunning images of the Moon’s far side, a region yet to be seen by human eyes.

Originally scheduled for 2019, Artemis II faced numerous delays stemming from the earlier uncrewed Artemis I mission, launched successfully in 2022. Artemis I tested the capabilities of the Space Launch System (SLS) rocket and Orion crew capsule.

This time, Artemis II will carry a crew of four astronauts: NASA’s Reed Wiseman, Victor Glover, Christina Koch, and Canadian Space Agency’s Jeremy Hansen.

After a “wet dress rehearsal” in February revealed a minor fuel leak, NASA successfully resolved the issue, returning the vehicle to the launch pad for final preparations. The astronauts are now in quarantine, eagerly awaiting their mission.

At a press conference held on March 29, Commander Wiseman stressed the significance of this mission as a crucial test for both the SLS rocket and Orion capsule. “This is the first time we’re trying this. We’re ready to go, but we won’t launch until we’re absolutely certain the vehicle is ready,” he stated.

If the launch does not take place by April 6, the next available opportunity will be April 30, with subsequent windows opening in May.

Once launched, the SLS rocket will spend two days orbiting Earth, during which the crew will test life support systems and maneuver the Orion capsule for docking with older spacecraft. Following this preparatory phase, the crew will embark on an eight-day journey around the Moon.

This journey will provide the first views of regions on the Moon’s far side, including the Mare Orientale crater, which has only been previously photographed by satellites. “We all think we’ve been to the moon, but approximately 60 percent of the far side is still unexplored,” Wiseman noted during the conference.

Artemis II represents a significant milestone in NASA’s long-term Artemis program. While initial plans included lunar landings by Artemis III, this has now been postponed to Artemis IV, focusing instead on preparing for future lunar operations. Artemis III is slated for 2027, followed by Artemis IV and potentially V in 2028.

These missions aim to establish a permanent human presence on the Moon, paving the way for future explorations. “We’re excited to play our part in this monumental journey, and upon our return, we hope to inspire the next generation,” Hansen said at the conference.

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Source: www.newscientist.com

Top New Science Fiction Books of April 2026 by George R.R. Martin, James S.A. Corey, and Douglas Preston

Charlotte Robinson’s ‘Thriller Mars One’ Releases This Month

Getty Images/iStockphoto

Currently, I’m diving into the science fiction classic Red Mars by Kim Stanley Robinson as part of the New Scientist Book Club’s April selection. The concept of traveling to red planets captivates me, and I’m eagerly awaiting Charlotte Robinson’s gripping thriller Mars One. In addition, this month features an exciting lineup of sci-fi literature, including Cosmic Horrors by S.A. Barnes, Resurrected Neanderthals by Douglas Preston and Aletheia Preston, and AI-Generated Video Ghosts by Max Lurie, offering something for every reader’s palate.

Mars One by Charlotte Robinson

This thrilling space opera unfolds a one-way mission to Mars, entwined with the story of a programmer mysteriously vanishing in Hong Kong, leaving behind only a perplexing warning. As the Argo spacecraft journeys to Mars, the crew grapples with sabotage—will the two narratives intertwine? The publisher has likened Mars One to two of my favorite reads: Andy Weir’s The Martian and Terry Hayes’ spy thriller I Am a Pilgrim. Fingers crossed this novel meets the expectations set by these brilliant works!

Claire and the Beacon Repair crew intercept an enigmatic distress signal, leading them to investigate a luxury spacecraft lost during its inaugural journey two decades ago. Upon boarding the Aurora, they sense something amiss as whispers echo in the dark and chilling messages are scrawled across the walls. Space horror? Count me in!

This eclectic collection of thought-provoking stories traverses genres from science fiction to fantasy to literary fiction, featuring tales of first contact, a time-traveling fisherman, and an evolving consciousness set to explore the universe’s wonders. Included is Mills’ award-winning story Rabbit Inspection, which clinched the Nebula, Locus, and Sturgeon Awards.

New Release: George R.R. Martin’s Wild Card Series Arrives in April

Album / Alamy Stock Photo

This collection of stories is set in the universe of Game of Thrones author George R.R. Martin’s Wild Card series. Humanity faces destruction from an alien virus with unpredictable outcomes. Some die, others gain surprising powers, and some suffer bizarre mutations. Collaborating with authors like Cherie Priest and Walter Jon Williams, these narratives follow Cloyd Crenson as he is split into six distinct personas.

Paradox by Douglas Preston and Aletheia Preston

Despite its silliness, I thoroughly enjoyed Preston’s last novel, Extinction, which channeled the vibe of Jurassic Park into an adventure with long-extinct creatures coming back to life in a wildlife park. This sequel, co-authored with his daughter, unravels tales of alien artifacts that UFO enthusiasts believe could change the world, a secretive fanatic society, and a revived Neanderthal with a much less enthusiastic outlook than previous characters portrayed in Homo Sapiens.

Revived Neanderthals Feature in This Month’s Sci-Fi Novel Paradox

Science History Images / Alamy Stock Photo

This installment is part of the War of the Prisoners series by the author of The Spread. It’s a thrilling space opera, showcasing humanity’s battle against the formidable Calix Empire for survival. The narrative follows Dafydd Alcohol, a captured human, and Swarm, a rogue agent striving to undermine the Empire.

A novel that piques my interest blends science fiction themes with an exploration of isolation. The protagonist, Ada, navigates her loneliness in London, forging a connection with Atticus. As her detachment from the world deepens, she questions whether her newly artificial environment was constructed specifically for her.

Permanence by Sophie Mackintosh

Mackintosh’s prior novel, Water Cure, which presented a chilling fable set on a potentially toxic island, was immensely enjoyable. It felt on the cusp of science fiction, and I’m curious if Permanence will explore similar themes. This tale follows Clara and Frances as they clandestinely continue their affair, only to wake up in an unfamiliar town filled exclusively with their unfaithful friends, free to live openly yet cut off from the outside world.

In Event Horizon, Milde faces a harrowing decision: public execution or a journey into a black hole.

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Event Horizon by Balsam Karam, Translated by Saskia Vogel

Published by Fitzcarraldo, a renowned independent literary publisher featuring multiple Nobel laureates, this novel tells the story of 17-year-old Milde, who rebels against a tyrannical government that has exiled her mother and child. After encountering imprisonment and torture, she faces a dreadful choice: public execution or participating in a groundbreaking mission that launches her into the cosmos and down a black hole called Mass.

Set in the universe of Stroud’s Fractal, the series begins in 2121 AD, three years following the first Martian conflict. As the colony strives for survival, vigilante-turned-revolutionary Magnus Scirocco finds a cause, Peter Iskander leads a religious initiative, and Brigadier Elisa Shan enters a perilous duel when her ship is commandeered.

I’m captivated by this novel’s premise. Harlow seeks her missing friend Annie, unearthing remnants of a dead body in an AI-generated video. Concurrently, Kieran, also in the pursuit of Annie, discovers a community on a mission to find a vanished ghost. The narrative promises to delve into the evolving concept of ghosts as technology advances. This isn’t just simple science fiction—it’s intriguing!

Metro 2035 by Dmitry Glukhovsky

This concluding installment of the Metro trilogy inspired the acclaimed video game. Taking place twenty years post-World War III, the narrative unfolds in the Moscow subway, where the few survivors desperately cling to hope, searching for signs of life above ground.

Many by Sylvain Nouvel

This First Contact narrative revolves around five individuals in the small town of Marquette, Michigan, whose minds begin to intertwine as they confront a reality “bigger and stranger than they ever imagined.”

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Source: www.newscientist.com