NASA’s Io: Synchronized Volcanic Eruptions Indicate Cavernous Interior Structure

Posted on February 6, 2026 by Igor Mitreski

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Volcanic Eruption on Io Captured by the Galileo Spacecraft

NASA/JPL/DLR

Volcanic eruption on Io — Volcanic Eruption on Io Captured by the Galileo Spacecraft

NASA/JPL/DLR

In an unprecedented display, five volcanoes on Jupiter’s moon Io erupted simultaneously, indicating a potential connection to a shared underground magma network. This remarkable phenomenon may offer insights into the enigmatic interior of Io.

During late 2024, NASA’s Juno spacecraft provided crucial observations of a significant lava flow originating from Io’s south pole. “We noticed an enormous eruption with extensive lava flow, but upon closer inspection, all other hotspots were also glowing,” remarked Jani Radebaugh from Brigham Young University in Utah. “The abundance of magma is challenging to fully comprehend.”

This massive eruption impacted an area of about 65,000 square kilometers, releasing more energy than any previously recorded eruption on Io. “Imagine standing at the edge of a newly formed lava lake; behind you, a crevice opens, also flooding with lava. It would be both awe-inspiring and terrifying,” Radbaugh described. “Such beauty mixed with danger is captivating.”

The origin of this vast amount of magma remains a mystery, especially given current understanding of Io’s internal structure. Previous studies revealed that Io does not possess a global magma ocean beneath its crust, raising questions about how such a substantial volume of magma could erupt simultaneously.

Radbaugh and his team propose the existence of a ‘magmatic sponge’ beneath Io’s surface, consisting of networks of interconnected pores that can accumulate lava and erupt at hotspots. However, further observations are necessary to validate this theory, and with Juno moving away from Io, timely additional data may be scarce.

Despite its relatively small size, slightly larger than Earth’s moon, Io’s vigorous volcanic activity parallels eruptive phenomena observed on Earth. “Io provides a window into our planet’s past, reminiscent of an Earth that was hotter and more active,” Radebaugh noted. While the precise causes of these powerful eruptions remain elusive for now, resolving them may illuminate vital chapters in Earth’s geological history.

Exploring the Mysteries of the Universe: Cheshire, England

Join some of the brightest minds in science for a weekend dedicated to uncovering the mysteries of the universe, complete with a tour of the famed Lovell Telescope.

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Source: www.newscientist.com

Discover NASA’s Artemis II Moon Mission Astronauts: Meet the Team Leading Our Lunar Exploration

Posted on January 31, 2026 by Igor Mitreski

Three highly skilled NASA astronauts are embarking on an exciting mission into space. Reed Wiseman, a former Navy officer who transitioned to astronaut status in 2009, brings significant experience, having spent six months aboard the International Space Station (ISS) in 2014.

Reed Wiseman and daughters.
Provided by Reid Wiseman

Since the passing of his wife in 2020, Wiseman has taken on the challenging role of raising two children as a single parent. He acknowledges the stress that comes with being an astronaut, noting that the thrill of the mission is often tempered by the sacrifices it demands from their families.

“I’m a dedicated single father to two daughters,” he shared with NBC’s “TODAY” during a candid interview with fellow crew members. “While it might be easier to relax on the couch with a football game, the reality is that we have four individuals ready to undertake extraordinary and groundbreaking explorations in our civilization.”

Wiseman expressed hope that the outcomes of this monumental mission will validate the sacrifices made by the families of the crew.

“We often look toward the moon and proudly state, ‘We’ve been there.’ However, for this generation—both current and future, known as the Artemis generation—they will look at the moon and proudly declare, ‘We are there,'” he emphasized.

A pendant featuring Jeremy Hansen’s family birthstones accompanied by the engraving “Moon and Back”.
Provided by Jeremy Hansen

Each astronaut will carry personal tokens on their historic flights around the moon. Wiseman and Koch will carry letters from their families, while Grover plans to bring a Bible, wedding ring, and a cherished heirloom for his daughters. Hansen will carry a moon pendant featuring his family’s birthstone and the phrase “Moon and Back.” These items serve as meaningful mementos and ways for the astronauts to connect their families to the journey.

Koch, a veteran of profound space missions, holds the record for the longest single spaceflight by a woman, having spent a remarkable 328 days on the ISS in 2019. Alongside fellow astronaut Jessica Meir, she made history with NASA’s first all-female spacewalk.

Christina Koch with her husband and dog.
Provided by: Christina Koch

Koch expressed her contentment about not participating in another significant milestone, stating her excitement for her colleagues who are set to leave footprints on the lunar surface.

“I’m genuinely thrilled to see familiar faces taking steps toward walking on the moon. However, if that is not my destiny, I am completely at peace with it,” Koch mentioned, noting NASA has yet to assign a crew for the Artemis III mission.

Victor Glover with his family.
Provided by: Victor Glover

In a similar vein, Grover previously participated in a historic flight, flying the SpaceX Crew Dragon capsule to the ISS in 2020. Glover, a former U.S. Navy captain and test pilot, was transitioned from his position in the U.S. Senate when he was selected for NASA’s astronaut program in 2013. Grover and his wife are parents to four children.

Hansen, marking his spaceflight debut, is set to become the first Canadian to explore lunar terrain. A graduate of the Canadian Space Agency’s astronaut program in 2009, he previously served as a fighter pilot and colonel in the Canadian Armed Forces.

With three children, Hansen highlighted the camaraderie that has developed among the crew, remarking that they’ve formed a familial bond through years of intense training together.

Jeremy Hansen with his family.
Provided by Jeremy Hansen

The upcoming Artemis II launch will be only the second deployment of NASA’s Space Launch System (SLS) rocket paired with the Orion capsule. The inaugural launch, Artemis I, conducted an unmanned mission that circled the moon over three years ago.

Wiseman, Koch, Grover, and Hansen view this mission as a crucial stepping stone towards the Artemis III ambition, which aims to land four astronauts near the moon’s polar regions in 2027. Throughout their mission, the crew will practice docking procedures in Earth orbit, conduct scientific experiments, and evaluate various systems inside the Orion capsule, serving as a trial run for a forthcoming lunar landing.

“To us, achieving success is synonymous with landing on the moon during Artemis III,” Koch stated. “Success is always Artemis 100. Everything we do is centered around that.”

Source: www.nbcnews.com

NASA’s Parker Solar Probe Discovers 3I/ATLAS Comet: Key Findings and Insights

Posted on December 23, 2025 by Igor Mitreski

Scientists utilized the WISPR (Wide Field Imager for Solar Exploration) instrument on NASA’s Parker Solar Probe to capture stunning images of the interstellar comet 3I/ATLAS between October 18 and November 5, 2025.

WISPR captures the interstellar comet 3I/ATLAS. Image credit: NRL / NASA / JHUAPL / Guillermo Stenborg, JHUAPL.

Discovered on July 1, 2025, by the NASA-funded ATLAS survey telescope in Rio Hurtado, Chile, 3I/ATLAS, also known as C/2025 N1 (ATLAS) and A11pl3Z, originated from the constellation Sagittarius.

This remarkable interstellar comet approached Mars on October 3 at a distance of just 0.194 AU and reached its perihelion, the closest point to the Sun, on October 30.

On December 19, 3I/ATLAS made its nearest pass to Earth, coming within 270 million kilometers (168 million miles) of our planet.

The spectacular images of 3I/ATLAS were obtained by the WISPR instrument aboard NASA’s Parker Solar Probe during a critical observation window from October 18 to November 5.

“The Parker Solar Probe captured around 10 images of the comet daily,” stated WISPR team members.

“During this observation period, the spacecraft accelerated away from the Sun following its 25th solar flyby on September 15.”

“These initial images are currently undergoing calibration and processing, revealing the comet’s movement behind the Sun from Parker’s vantage point.”

“At that time, the comet was located about 209 million kilometers (130 million miles) from the Sun, just beyond Mars’ orbit.”

“These images offer a rare opportunity to study the comet when it was too close to the Sun for ground-based observations.”

The WISPR team is diligently working to finalize the data by eliminating stray light and adjusting for varying exposure times between images, enhancing the comet’s visibility.

“The final images will significantly advance our understanding of this intriguing interstellar visitor,” researchers concluded.

Source: www.sci.news

NASA’s New Leader, Jared Isaacman, Outlines His Key Priorities

Posted on December 19, 2025 by

Jared Isaacman, a billionaire entrepreneur, has outlined his priorities for NASA on his inaugural day as the agency’s new leader.

Sworn in as NASA’s 15th administrator on Thursday, Isaacman was officially appointed the same day President Donald Trump endorsed an executive order instructing NASA to return astronauts to the Moon by 2028, initiate the development of a permanent lunar outpost by 2030, and establish a framework for future exploration of Mars.

This order is expected to offer Isaacman and NASA a strategic roadmap.

“In the next three years, we will once again land American astronauts on the Moon, but this time we aim to create the necessary infrastructure for their extended stay,” Isaacman stated in an interview with NBC News following his swearing-in.

He assumes this role during a pivotal moment for NASA, as the Trump administration urges the agency to land astronauts on the Moon before any Chinese astronauts arrive there.

“A new space race is upon us,” Isaacman remarked.

The next stage of NASA’s Moon return initiative, known as Artemis, could kick off as soon as February. The Artemis II mission will send four astronauts on a 10-day lunar orbit to test the Space Launch System rocket and Orion spacecraft.

The following Artemis III mission is anticipated to have astronauts land close to the lunar south pole.

U.S. District Judge Timothy Kelly (left) swears in Jared Isaacman (right) as NASA’s 15th administrator in Washington, D.C., on Thursday, with Isaacman’s parents, Donald and Sandra Murray, present.Bill Ingalls/NASA (via Getty Images)

Under Isaacman’s leadership, NASA is anticipated to pursue increased commercialization. SpaceX and Blue Origin will be crucial to the agency’s lunar return efforts, and Isaacman indicated that additional private space firms will back the agency’s aspirations for the Moon.

President Trump’s space policy executive order advocates for the creation of a “dynamic commercial space economy driven by American free enterprise” and details plans to reduce the International Space Station while establishing a commercial space station by 2030.

Additionally, the order emphasizes nuclear power in space. Following direction from Transportation Secretary Sean Duffy, who served as NASA’s acting administrator before Isaacman’s confirmation, the initiative aims to develop a nuclear reactor ready for launch to the Moon by 2030.

Isaacman highlighted the importance of nuclear power for explorations beyond the Moon, particularly for future Mars missions.

However, one significant challenge he will encounter as administrator is translating the White House’s vision into action with a constrained budget.

Current funding for the U.S. government is set to last until January 30; afterward, NASA may face substantial budget reductions, especially for science operations.

Despite these immediate hurdles, Isaacman remains optimistic about the agency’s capacity to align with the administration’s goals.

“Whether it’s $25 billion or $20 billion, it’s a significant sum that the agency receives every year,” he remarked. “We possess exceptional talent to tackle numerous challenging, nearly impossible tasks simultaneously.”

“This is an opportunity for the president’s space policy to revisit the Moon, establish infrastructure there, and invest in future technologies like nuclear power in anticipation of Mars missions,” Isaacman stated. “With the resources at hand and the president’s dedication to space policy in the White House, I’m confident we can achieve our objectives.”

Source: www.nbcnews.com

Blue Origin Launches Rocket to Transport NASA’s Twin Spacecraft to Mars

Posted on November 14, 2025 by

Blue Origin achieved a successful launch of its impressive New Glenn rocket on Thursday, transporting two NASA spacecraft en route to Mars. This marks just the rocket’s second flight, as both Blue Origin and NASA anticipate it will eventually carry personnel and supplies to the moon.

Soaring to a height of 321 feet (98 meters), the New Glenn rocket burst into the afternoon sky from Cape Canaveral Space Force Station, initiating a lengthy journey for NASA’s twin Mars rovers to the Red Planet. The launch was delayed by four days due to inclement weather and a solar storm, which created auroras visible as far south as Florida.

In a significant achievement for the emerging company, Blue Origin successfully retrieved the booster after its separation from the upper stage and the Mars rover. This step is vital for cost reduction and reusability, mirroring SpaceX’s operational model. Company employees erupted in cheers as the booster landed upright on a barge 375 miles (600 kilometers) offshore, with an elated Bezos observing from launch control.

“Next time it’s the moon!” the employees chanted excitedly after the centerpiece of the booster landed. Twenty minutes later, the upper stage of the rocket deployed the two Mars rovers into space, fulfilling the primary goal of the mission.

The New Glenn conducted its inaugural test flight in January, successfully placing a prototype satellite into orbit, though it did not manage to land its booster on a floating platform in the Atlantic Ocean.

The twin Mars rover, named Escapade, will remain near Earth for a year at a distance of 1 mile (1.5 kilometers). Once Earth and Mars are ideally aligned next fall, they will utilize gravity assist from Earth to travel to the Red Planet, with an expected arrival in 2027.

During its orbit around Mars, the spacecraft will map the planet’s upper atmosphere and diffuse magnetic field, studying their interactions with solar wind. The data collected will enhance understanding of the processes driving the loss of Mars’ atmosphere and provide insights into how the planet transitioned from a wet and warm environment to its current dry and dusty state. Researchers will also investigate ways to protect astronauts from the intense radiation present on Mars.

“We are eager to gain a deeper understanding of how the solar wind interacts with Mars,” stated Escapade’s lead scientist Rob Lillis from the University of California, Berkeley, ahead of the launch. “Escapade offers a unique opportunity with two spacecraft operating simultaneously, granting us an unprecedented stereo perspective.”

This relatively cost-effective mission is budgeted at less than $80 million and is managed by the University of California, Berkeley. Initially slated for last fall, the launch of the Mars rover was postponed due to issues related to Blue Origin’s new rocket.

The New Glenn rocket, named in honor of John Glenn, the first American to orbit the Earth, is significantly larger than Blue Origin’s New Shepard rocket, which caters to affluent passengers traveling to the edge of space from West Texas. Blue Origin is also set to launch a demonstration mission for its prototype lunar lander, Blue Moon, aboard New Glenn in the upcoming months.

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Founded in 2000 by Amazon’s Jeff Bezos, Blue Origin holds a contract with NASA for the third astronaut lunar landing under the Artemis program. In contrast, SpaceX, led by Elon Musk, utilized its Starship rocket—approximately 100 feet (30 meters) taller than New Glenn—to successfully complete the first two crewed lunar landings.

However, last month, NASA’s acting administrator Sean Duffy reinstated the contract for the initial manned moon landing, expressing concerns regarding the pace of progress on Starship’s testing from Texas. Both Blue Origin and SpaceX have put forth preliminary plans for landing.

Plans are underway for NASA to send astronauts around the moon early next year using its own Space Launch System (SLS) rocket, followed by the Artemis crew’s attempt to land. The space agency aims to surpass China’s mission and return astronauts to the moon within the next decade.

Source: www.theguardian.com

Why NASA’s Moon Return Aspirations Hang on SpaceX Before China Beats Them There

Posted on October 17, 2025 by

Intricate and sophisticated sequences depend on several untested technologies. A crucial aspect is the refueling of starships in space. Dreyer noted that it remains uncertain how many launches will be required to supply the necessary fuel, but they must occur rapidly.

“It might take between 12 and 20 refueling missions within a month to replenish Starship’s tanks with enough fuel for a mission to the moon and back,” he stated. “Such a scenario has never been realized.”

Refueling only in space would necessitate a “significant advancement” from Starship’s current capabilities, he remarked.

“This poses a tremendous challenge,” Dreyer emphasized. “Without these advancements, our lunar aspirations won’t be achievable.”

The Starship lander is projected to stand approximately 150 feet taller than the rugged, spider-like lunar lander NASA utilized during the Apollo missions. Such a taller design could enable Starship to transport more passengers and cargo; however, it may also be less stable than the Apollo spacecraft.

Nevertheless, Dreyer argued that it wouldn’t have been practical for NASA to depend on outdated technology, especially considering financial constraints. A single Saturn V rocket launch from the Apollo era costs around $2 billion today. In contrast, SpaceX aims to develop Starship as fully reusable, which could lower costs and speed up launch times.

The next phase for the company involves revealing an upgraded Starship prototype. This model is approximately five feet taller and incorporates an enhanced docking mechanism, increased energy storage, and software improvements to facilitate long-duration flights.

This new version will be employed for Starship’s inaugural orbital flight, testing essential SpaceX procedures such as fuel transfer and payload transportation into space, as per SpaceX officials. I discussed this in my previous post following Monday’s test.

Future missions, like this week’s, will also be under scrutiny as China moves toward its 2030 objectives.

“Four years is a short time frame in space,” Dreyer remarked. “These endeavors are exceptionally complex and challenging because the universe is perpetually testing you.”

Source: www.nbcnews.com

NASA’s Jet Propulsion Laboratory Cuts 550 Jobs

Posted on October 14, 2025 by

On Monday, NASA’s Jet Propulsion Laboratory revealed plans to eliminate around 550 jobs, which represents about 10% of its workforce.

In a statement shared online, Institute director Dave Gallagher indicated that these layoffs are part of a larger “workforce realignment” and are not connected to the ongoing government shutdown.

The positions affected by the layoffs will span various areas including technology, business, and support within the NASA center.

Gallagher emphasized, “Making these decisions this week will be difficult, but they are vital for ensuring JPL’s future by establishing a more streamlined infrastructure, concentrating on our primary technology capabilities, upholding fiscal responsibility, and positioning us for competitiveness within the changing space landscape, all while continuing to deliver critical contributions for NASA and the nation.”

He also mentioned that affected employees will receive notifications regarding their status on Tuesday.

Located in Pasadena, California, the Jet Propulsion Laboratory is a research and development center funded by NASA but managed by the California Institute of Technology, and is home to some of the agency’s most renowned missions, including Explorer 1, America’s inaugural satellite, launched in 1958.

Additionally, JPL scientists have designed, constructed, and operated all five rovers that have landed on Mars with NASA’s guidance.

NASA is grappling with uncertainty surrounding its budget and future goals. Similar to many government entities, it has experienced considerable budget cuts and staffing reductions as part of a broader federal workforce downsizing initiated under the Trump administration.

Since the commencement of President Donald Trump’s term, approximately 4,000 NASA staff members have opted for deferred retirement programs, leading to a nearly 20% decrease in the agency’s workforce, which originally comprised 18,000 employees.

In July, Reuters reported that about 2,145 senior employees at NASA are expected to retire as part of the layoffs.

The Trump administration assumed office last week amid an ongoing government shutdown. Over 4,000 additional federal workers were laid off across various departments including Treasury and Health and Human Services, although this reduction does not seem to impact NASA.

Source: www.nbcnews.com

NASA’s Asteroid Deflection Experiment Yields Surprising and Mysterious Outcomes

Posted on October 2, 2025 by Igor Mitreski

The NASA DART probe, depicted on the upper right, is on a trajectory to collide with the asteroid Dimorphos, shown on the left.

Steve Gribben/Johns Hopkins APL/NASA/AP/ALAMY

Following the collision of NASA’s spacecraft with an asteroid, its orbit is expected to change gradually next month, leaving astronomers puzzled.

In 2022, the Double Asteroid Redirect Test (DART) sent a nearly 600-kilometer spacecraft towards a small asteroid known as Dimorphos.

Prior to the collision, Dimorphos completed an orbit every 11 hours and 55 minutes. Observations soon indicated that the impact shortened this orbital period by approximately 30 minutes, although in the following weeks and months, the orbital period diminished by an additional 30 seconds.

Astronomers have proposed that this phenomenon might be due to the release of small debris during the impact, which could gradually cause energy loss and result in a reduced orbital path.

Recently, Harrison Agrusa and Camille Chattanette from the University of Côte d’Azur in Nice, France, asserted that debris ejection cannot solely explain the observations.

“The boulders can be flung by Dimorphos, leading to a wider dispersion. This momentum will eventually revert and be transferred back to Dimorphos,” Agrusa explains.

Agrusa theorizes that a more plausible reason for Dimorphos’ shifting trajectory is that its impact affects its rotation in a complex manner, causing rocks on its surface to shift. The friction generated by these rocks could lead to heat production from their collisions. The resultant energy loss as heat might clarify the decrease in the asteroid’s orbital path, although this study has not modeled that aspect.

“When you rearrange materials on a surface, you’re altering the gravitational potential energy of Dimorphos itself,” Agrusa states. “This adjustment could feasibly slow down the orbital period within a month, as this would be a prolonged process.”

This highlights the challenges in predicting how asteroid orbits will alter post-impact, yet according to Agrusa, this phenomenon is less concerning when deflecting an asteroid heading towards Earth. This is because binary asteroid systems like Didymos and Dimorphos are quite uncommon, making it unlikely that similar effects will occur for a solitary asteroid orbiting the Sun.

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Source: www.newscientist.com

Many Exoplanets Discovered by NASA’s TESS Satellite Could Be Larger Than Expected

Posted on July 16, 2025 by Igor Mitreski

The radius of a planet is a crucial factor in understanding its composition and characteristics. Accurate radius measurements are generally obtained by analyzing the percentage of starlight blocked as the planet transits its host star. NASA’s Transit Exoplanet Survey Satellite (TESS) has identified hundreds of new exoplanets; however, its low angular resolution can lead to the mixing of light from stars hosting exoplanets with that of background stars. If not entirely corrected, this additional light may dilute the transit signal, leading to an underestimation of the planetary radius. In their analysis of the planet Tess, astronomers from the University of California, Irvine revealed that systematically incorrect planetary radii are frequently reported in scientific literature.

Artistic impression of a gas giant exoplanet and its parent red dwarf star. Image credit: Sci.News.

“We have discovered that many exoplanets are larger than previously thought, which shifts our understanding of exoplanet characteristics on a wide scale,” states Tae Han, a doctoral student at the University of California, Irvine.

“This suggests that we may have actually identified Earth-like planets that are fewer than we initially believed.”

Astronomers cannot directly observe exoplanets; they rely on the planets passing in front of their host stars to measure the subtle decrease in starlight.

“Essentially, we are measuring the shadows cast by planets,” remarks Paul Robertson, a professor at the University of California, Irvine.

In their study, the authors examined the observations of hundreds of exoplanets detected by TESS.

They found that light from neighboring stars could “contaminate” the light emitted by the stars under study.

This results in planets transiting in front of their stars appearing smaller than their actual size, receiving less light compared to larger planets.

Astronomers have conducted numerous studies explaining the characteristics of planets discovered by TESS.

They categorized the planets based on how different research teams measured their radii and used computer models to estimate the extent of bias resulting from light interference from adjacent stars.

Data from the ESA Gaia satellite was utilized to assess the impact of light contamination on TESS observations.

“TESS data is indeed contaminated, and our custom models perform better than any existing methods in the field,” stated Professor Robertson.

“What we discovered in this study is that these planets could be systematically larger than we initially assumed.”

“This raises the question: How common are Earth-sized planets?”

Previously, it was thought there were fewer planets resembling Earth in size.

“Among the single-planet systems identified by TESS, only three were believed to have a composition similar to Earth,” Han noted.

“This new finding indicates that all of them are larger than we previously thought.”

This implies that instead of rocky planets like Earth, they are more likely to be water worlds (planets entirely covered by vast oceans that are often larger than Earth) or larger gas giants like Uranus or Neptune.

This could have significant implications for the search for life on distant worlds, as water worlds may harbor life but lack the specific conditions necessary for life to thrive as it does on Earth.

“These insights have important consequences for our understanding of exoplanets, including prioritizing follow-up observations with the NASA/ESA/CSA James Webb Space Telescope and assessing the prevalence of water worlds in our galaxy,” concluded Professor Robertson.

The study was published in Astrophysical Journal Letters.

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Tae Han et al. 2025. Hundreds of TESS exoplanets may be larger than previously thought. ApJL 988, L4; doi: 10.3847/2041-8213/ade794

Source: www.sci.news

The Trump Administration Decides Against Posting Extensive Climate Change Report on NASA’s Website

Posted on July 15, 2025 by Igor Mitreski

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On Monday, the Trump administration advanced efforts to complicate access to a crucial legally mandated scientific evaluation regarding the risks climate change poses to the nation and its citizens.

Earlier this month, the official government website indicated its authority, stating that the peer-reviewed national climate assessment was moving offline. These platforms provide essential information for state and local governments and the public regarding what to expect from climate change and how to adapt accordingly. At that time, the White House stated that NASA would host the report to comply with the 1990 Act Requiring Reporting.

However, on Monday, NASA declared the cancellation of those plans.

According to NASA, “The USGCRP (the agency that oversaw and utilized the report) fulfills its statutory obligations by presenting the report to Congress. NASA has no legal requirement to host data from GlobalChange.gov,” meaning no coordinated assessments or data from governmental scientific offices will be routed to NASA.

On July 3, NASA released a statement affirming, “All existing reports will be accessible on the NASA website to maintain continuity in reporting.”

“This document was produced for taxpayers and includes vital information necessary for people to protect themselves in changing climates,” said the Chief Scientist of the Nature Reserve, a co-author of several previous national climate assessments.

Copies of past reports remain accessible at the National Oceanic and Atmospheric Administration’s library, and you can view the latest reports and their interactive atlas here.

John Holden, a former scientific advisor to the Obama White House and a climate scientist, accused the administration of blatant misinformation regarding its intentions to censor or obscure the report.

“This new approach exemplifies a classic misunderstanding characteristic of the Trump administration,” Holden stated. “They initially aim to soothe outrage over the discontinuation of the GlobalChange.gov site and the disappearance of the national climate assessment, only to retract their reassurances without apology two weeks later.”

“They simply do not want the public to have access to detailed and scientifically validated information concerning climate change’s impact on agriculture, forests, fisheries, as well as storms, floods, wildfires, and coastal properties.

Holden emphasized the significance of these reports for state and local authorities and the general public, asserting that they “aid in understanding how climate change is affecting people’s lives, their loved ones, their properties, and their environments.”

“Trump is intentionally keeping people in the dark,” Holden asserted.

The most recent report published in 2023 revealed that climate change is impacting the safety, health, and livelihoods of individuals across the country in various ways, putting them at an increased risk.

Feel free to modify any part further as needed!

Source: www.nbcnews.com

NASA’s Dom Petit Captured Stunning Photos from the ISS Over 220 Days

Posted on May 12, 2025 by Igor Mitreski

Don Pettit, NASA’s oldest active astronaut, made his return to Earth on April 20th, coinciding with his 70th birthday. This marked the end of his fourth mission, a demanding 220-day stay at the International Space Station.

Throughout his time aboard the space station, Pettit engaged in various experiments, interacted with students, and exercised extensively to maintain his health and combat bone density loss. However, his most captivating contribution was through his photography.

For many on Earth, going to space is simply a dream. “I caught a glimpse of how they perceive my image,” said Pettit during a press conference following his return to Japan.

Pettit mentioned that dedicated photographers always carry a camera. “I could gaze out of the window and enjoy the stunning views,” he described. “But every time I look out, I am just enjoying it, saying to myself, ‘Wow, look at that. Oh, there’s a flash. What’s happening there?’ and, ‘Ah, a volcano appears.’ Then I think, ‘Where’s my camera?’

At times, he would set up five different cameras simultaneously in the cupola module, where seven windows offered sweeping vistas of space and Earth.

Capturing images in space shares similarities with night photography; the stars are faint and require longer exposure times to gather sufficient light. However, in orbit, everything is in constant motion, with the space station racing at 5 miles per second while the Earth spins beneath.

At times, Pettit embraced the dynamic beauty. The shimmering lines blurred under the light showcased the stars tracing arcs across the night sky.

“These meld science with art,” Pettit noted on X. “There are so many techniques to observe, or you can simply sit back and think, ‘How cool!’

His camera was fitted with a “trajectory fitting tracker,” a homemade device that gradually adjusts for the space station’s movements, keeping the lens focused on a particular point in the sky.

Thanks to this tracker, he was able to capture a 10-second exposure of the Milky Way shining above the cloudy Pacific Ocean just before dawn, revealing a captivating blue-purple glow from sunlight scattering through nitrogen in Earth’s atmosphere.

The sidereal tracker also contributed to capturing the image below from the windows of the docked SpaceX Crew Dragon spacecraft.

The photo reveals the large and small Magellanic Clouds, the closest galaxies to our Milky Way on a cosmic scale.

In April, Pettit filmed the mesmerizing rhythmic pulsations of the aurora, a glowing phenomenon caused by high-energy solar particles interacting with atmospheric molecules.

On occasion, vibrant lights were the result of human activity, not celestial events. The green lines seen in this photo are similar in color to the aurora but actually result from fishing boats off Thailand attracting squid.

While photographing Earth, Pettit recorded lightning striking in the upper atmosphere above the Amazon Basin in South America. These videos captured time intervals ranging from 6 to 33 seconds, showcasing more intricate details of the flashes.

The Betoshiboca River in Madagascar reminded Pettit of the visual patterns seen in human eyes’ blood vessels.

Similar to wildfires, urban areas intensify in brightness at night.

Pettit seized the opportunity to document spacecraft launching and returning to Earth, including a test flight of a SpaceX Starship rocket from Texas last November…

…and the docking of the SpaceX Dragon spacecraft, scheduled to transport cargo to the space station in December.

During his mission, Pettit also designed an entertaining science experiment. One showcased electrically charged water droplets dancing around a Teflon knitting needle. “I aim to do in space what can only be done in space,” he stated. “I’m worried that when I return, I’ll have to catch up on all the TV shows.”

In another experiment, he injected food coloring into a droplet of water, producing a sphere resembling Jupiter or a pristine marble.

Pettit also dissolved antacid tablets in water. In a microgravity environment, the escaping bubbles create entirely different patterns of pop, fizz, and hiss compared to on Earth.

He even froze thin water ice wafers at minus 140 degrees Fahrenheit. “What can you do with a freezer in space?” He wrote on X. “I decided to grow a thin layer of water ice just for the fun of it.”

Photographing the ice layer through a polarizing filter revealed intricate crystal formations.

While Pettit holds the title of the oldest NASA astronaut, he is not the oldest person to orbit Earth; that honor goes to John Glenn, who flew around the Earth in 1962 and again in 1998 at the age of 77.

Pettit is also not the oldest individual to spend time aboard the International Space Station; that distinction belongs to private astronaut Larry Connor, who was 72 during his two-week mission in 2022, organized by Axiom Space in Houston.

“I’m only 70, with a few good years ahead of me,” Pettit remarked during a news conference. “We’ve managed to squeeze in another flight before we had to finalize the rocket nozzle.”

Source: www.nytimes.com

NASA’s Proposed 2026 Budget Cuts $6 Billion, Mainly Impacting Science Programs

Posted on May 3, 2025 by Igor Mitreski

On Friday, the White House unveiled a budget proposal outlining significant reforms at NASA as part of its initiative to secure $163 billion in federal funding.

The suggested reductions include a nearly 25% cut, translating to over $6 billion, from NASA’s budget. The most substantial decreases target the agency’s Space Science, Earth Science, and Mission Support divisions.

The blueprint also advocates for a space launch system rocket and Orion spacecraft aimed at returning astronauts to the moon, but proposes to terminate the program after just two more missions.

The SLS Megarocket and Orion Spacecraft were fundamental components of NASA’s Artemis Moon initiative, named after the Greek goddess associated with the moon. This mission aimed to create a base camp on the lunar surface and facilitate regular missions.

Critics have pointed out that the SLS rocket exceeds the scale and capabilities of the historic Saturn V booster used in the Apollo missions, resulting in significant delays and budget overruns.

President Donald Trump’s budget draft seeks to terminate the Artemis II test flight, expected to launch in early 2026, as well as the Artemis III mission, planned for mid-2027.

A document outlining the budget requests indicates a shift in NASA’s funding priorities aimed at “returning to the moon and placing the first human on Mars.”

The proposal envisions a hub for space stations in lunar orbit, along with the cancellation of the lunar gateway project, which was intended to play a crucial role in upcoming deep-space missions.

Other significant changes include a $2.265 billion reduction in NASA’s Space Science budget, a $1.161 billion cut in Earth Science funding, and a $5 billion decrease for the International Space Station.

Additionally, these budget cuts will shrink the size of the crew aboard the space station and limit scientific research capabilities, while preparing for its decommissioning by 2030, as part of a transition to commercial space stations, dependent on budget requirements.

In an internal email obtained by NBC News, NASA’s acting administrator, Janet Petro, stated that the proposed budget “demonstrates the administration’s backing for our mission and sets the foundation for our next significant accomplishment.”

She encouraged NASA employees to “exercise patience, resilience, and the discipline needed to achieve unprecedented feats,” acknowledging the budgetary constraints as “difficult choices” that would result in some activities being discontinued.

Among other points, Petro highlighted that under the discretionary budget, NASA would dissolve the SLS rocket and Orion spacecraft programs, as well as the gateway initiative, and halt funding for the Mars sample return project.

Petro’s communications did not specify which aerospace and defense contractors might gain or lose federal support due to these proposed changes. However, companies such as SpaceX, led by Elon Musk, Blue Origin, founded by Jeff Bezos, and the United Launch Alliance (a collaboration between Boeing and Lockheed Martin) are positioned as leading launch providers in the absence of the SLS.

Source: www.nbcnews.com

NASA’s Budget Cuts Endanger Wildfire Combat Program

Posted on April 30, 2025 by Igor Mitreski

Hinesville, Ga. — From an elevation of 9,000 feet, NASA researchers observed extensive areas of prescribed burns at Fort Stewart Army Base this month, actively monitoring the flames and engaging with the landscape.

This burn is intentional and controlled, conducted as part of “prescription burns” to clear specific regions. The study, part of NASA’s FireSense project, aids firefighters in combating actual wildfires and may even help land managers avoid unnecessary ignitions.

However, initiatives like FireSense may face challenges as reports suggest significant budget cuts for NASA and other federal agencies under the Trump administration.

Last year, the U.S. experienced nearly 9 million acres consumed by wildfires, according to the National Interagency Fire Centre. Their annual report noted that wildfires and burned acreage in 2024 were “significantly higher than the five- and ten-year averages.”

Research indicates that climate change not only increases the frequency of wildfires but also exacerbates their destructiveness.

“The situation is deteriorating,” stated Michele Steinberg, director of the Wildfire Division at the National Fire Prevention Association. “We are witnessing fires in areas previously unaffected, burning hotter than ever.”

Severe wildfires pose substantial health, financial, and environmental threats, highlighting the importance of safeguarding lives and livelihoods through research.

NASA is not the only agency focused on wildfire issues. The U.S. Forest Service, the Department of the Interior, and the Bureau of Land Management are among the key federal entities engaged in wildfire response and prevention. What sets space agencies apart is their application of advanced technologies, including tools used in space, to bridge existing knowledge gaps.

“FireSense emerged from NASA’s recognition of wildfires as a significant issue. We are leveraging our expertise to assist the government in improving its wildfire management efforts.”

Project scientists will collaborate with local, state, and federal agencies, as well as academic partners, to enhance understanding of fire behavior, air quality concerns during and after wildfires, and ecosystem recovery post-ignition. Researchers are also exploring ways to manage vegetation in at-risk areas to minimize wildfire risks and curb rapid spread.

“Our objective is to adopt innovative technology, work closely with Wildland Fire Managers, and ensure this technology is accessible for wildfire situations,” explained Jacquelyn Shuman, a NASA Firesense project scientist.

The project employs equipment designed similarly to instruments used in low-Earth orbit on the International Space Station, providing detailed and accurate metrics to assist firefighters and land managers before, during, and after major fires.

At Fort Stewart, scientists monitored the prescribed burns, documenting the spread and mapping the flames with advanced infrared instruments known as Aviris-3 (short for Airborne Visible/Infrared Imaging Spectrometer 3). The fire ultimately consumed around 700 acres.

NASA scientists are studying prescribed burns at Fort Stewart on April 14th.
Milan P. Leikono / NASA

Researchers closely monitored fire spread, its ground position, and temperature variations.

Prescription burns are intentionally ignited to manage ecosystems that rely on regular fires for health. They also help diminish dry, combustible vegetation that could ignite uncontrollably.

These burns are meticulously planned and conducted under specific weather conditions to control their spread; they also serve as scientific experiments for wildfire researchers, according to Harrison Raine, a former elite firefighter and current project coordinator for FireSense.

“We’re aiming to integrate all aspects of the fire lifecycle and utilize scientific understanding to address ongoing issues,” said Raine, who has extensive wildfire experience across multiple states.

“This is a profoundly personal issue for me,” he shared. “Coming from Los Angeles, I’ve witnessed the devastation firsthand, and I am committed to tackling this critical challenge. It requires all available tools, and science is crucial.”

NBC News correspondent Jacob Soborov (left) visits FireSense burns with Department of Defense employees.
Milan P. Leikono / NASA

Nevertheless, the future of FireSense may be uncertain due to ongoing concerns regarding funding for NASA and other federal programs.

While the budget cuts could impact project viability, the precise effects remain unclear. Signals indicate significant reductions to NASA’s Science Mission Bureau, which includes geoscience initiatives.

“Funding decisions have not yet been finalized,” stated Rachel Courley, a spokesperson for the White House Office of Management and Budget. NASA declined to comment and referred questions about the budget to OMB.

As the administration gears up to unveil its budget proposals shortly, concerns about possible cuts intensify.

“As a former NASA leader, I take pride in the agency’s comprehensive efforts to monitor and respond to wildfires,” remarked Sen. George Whiteside (D-Calif) in a statement. “Cutting essential wildfire programs like FireSense poses a risk to rebuilding communities like mine after devastating fires in Southern California.”

Stanford University’s Wara emphasized the far-reaching consequences of NASA’s wildfire research, noting that space agencies have significantly contributed to contemporary wildfire models and fire-related data.

“There’s no doubt that FireSense has considerably enhanced our understanding of fire behavior and risk,” he commented. “Losing this initiative would be detrimental, as regaining that knowledge is exceedingly challenging.”

Source: www.nbcnews.com

NASA’s Lucy spacecraft is speeding towards yet another near encounter with an asteroid

Posted on April 19, 2025 by Igor Mitreski

NASA Lucy Spaceship This weekend, we will be heading past a small asteroid as we will continue our path to even bigger prizes: Unexplored: A flock of asteroids near Jupiter.

That’s probably The second asteroid encounter It was released for Lucy in 2021 as Quest to turn 11 Space Lock. A close approach should help scientists better understand the early solar system when planets are forming. The asteroid is Ancient leftovers.

The upcoming flyby is a 2027 dress rehearsal in which Lucy reached the first so-called Trojan asteroid near Jupiter.

Sunday’s spacecraft, making three scientific instruments, observes a harmless asteroid known as Donald Johansson. The encounter takes place 139 million miles (223 million kilometers) from Earth, the main asteroid belt between Mars and Jupiter.

A paleontologist named Lockheed Martin, the asteroid, the architect and operator of the spacecraft, is in mission control for all actions. He discovered Ethiopian fossil Lucy 50 years ago. The spaceship is named after a famous human ancestor.

NASA’s Lucy approaches 596 miles (960 kilometers) to this asteroid, an estimated 2½ miles (4 kilometers), but much shorter in width. Scientists should consider their size and shape better after a short visit. The spacecraft zooms at over 30,000 mph (48,000 kph).

The asteroid is one of countless fragments believed to have arisen from a massive collision 150 million years ago.

“It’s not going to be a basic potato. We already know that,” said Hal Levison, chief scientist at the South West Research Institute.

Rather, Levison said the asteroid could resemble bowling pins and snowmen like Arocos, the Kuiper Belt object that NASA’s New Horizon spacecraft visits in 2019. Another possibility is that two elongated but separate asteroids are far apart.

“We don’t know what to expect, and that’s what makes this so cool,” he said.

There is no communication with Lucy during the flyby as the spacecraft is keeping its antenna away from Earth to track the asteroid. Levison expects to have most of the scientific data within a day.

Lucy’s next stop, “Main Event,” is a Trojan asteroid that, as Levison calls it, shares Jupiter’s orbit around the Sun. A herd of Trojans preceded the largest planet in the solar system, circles the sun. Lucy visited eight people from 2027 to 2033, some of which will be paired with two.

Lucy’s first asteroid flyby came in 2023 as she passed Little Dinkinesh, located in the main asteroid belt. The spaceship discovered a mini-moon around it.

Source: www.nbcnews.com

Discovering Aurora on Neptune for the First Time with NASA’s Webb Telescope

Posted on March 28, 2025 by Igor Mitreski

The Northern and Southern Lights Vermillion, Amethyst, and Jade Ribbons are some of the most distinctive features of the Earth. However, our planet has no monopoly of the Aurora. Scientists spy on them throughout the solar system, weaving the Martian sky into Saturn, Jupiter and even some of Jupiter’s fiery softening.

The light shines in the sky Uranus too. However, the aurora around Neptune, the farthest planet of our Sun, has long escaped astronomers.

That was changed by the powerful infrared equipment installed in the James Webb Space Telescope. In a study published in the journal on Wednesday Natural Astronomy scientists reveal unique auroras spilling on either side of Neptune’s equator. This contrasts with the sparkling Gossamers, arcing at Poles in other worlds.

Astronomers are excited that the Aurora Hunting Quest has been completed over decades. “Everyone is very excited to prove it’s there, as we thought,” he said. Rosie Johnson an astrophysics researcher at Aberystwyth University in Wales who was not involved in new research.

The discovery allows scientists to study previously out-of-reach aspects of Neptune. “They use the aurora to understand the shape of the magnetic field on planets looking at the invisible,” he said. Karl Schmidt Boston University planetary astronomers were not involved in new research.

Each world produces aurora differently, but it is basically the same. Energy particles (often from the sun, but sometimes from the eruption of a lunar volcano) hit the atmosphere and bounce back the gas. The collision of the particles causes a temporary flash of light. And if there is a magnetic field in the world, it will guide the position…

Luckily, the Webb Telescope, released in 2021, came to rescue.

Heidi Hammel Another astronomer of the University Association for Astronomical Studies and the author of the research, has been studying Neptune since the 1980s. She said that if Webb “is powerful enough to see the early galaxies of the universe, it would be strong enough to see something like Neptune’s Aurorae.” “And by Golly, that was the case.”

Using the telescope’s near-infrared spectrometer, astronomers captured Neptune’s infrared aurora in June 2023. This is because Neptune has an unstable magnetic field tilted to 47 degrees from the planet’s spin axis.

New Webb observations also reveal why Neptune’s Auroras has never been visible until now. Almost 40 years ago, Voyager 2 recorded a temperature of about 900 degrees Fahrenheit in the Neptune’s upper atmosphere. However, the Webb telescope shows that the temperature has dropped nearly 200 degrees. This low temperature means that the aurora is a dimmer.

In fact, Neptune’s Aurora said, “It’s less than 1% of the expected brightness and explains why I’ve never seen it before.” James O’Donohew a planetary astronomer at the UK’s Reading University and one of the authors of the study. “But that means we have a new mystery in our hands now. How did Neptune get so cold?”

Neptune’s Strange Light Show detection may bring your answers closer.

“The Aurora is like a TV screen,” he said. Lee Fletcher a planetary scientist at the University of Leicester in the UK and one of the authors of the study. They said, “We are able to see the delicate dance of the magnetosphere processes.

Source: www.nytimes.com

NASA’s luck turns around with success of Blue Ghost Moon Lander after month of disappointment

Posted on March 21, 2025 by Igor Mitreski

NASA took a chance some years back that commercial companies could conduct scientific experiments on the moon at a lower cost than institutions.

Unfortunately, last year, NASA’s initial attempt missed its mark, and the second attempt ended in a crash. However, this month saw success with the robot lander, Blue Ghost, built by Firefly Aerospace in Texas.

On March 16th, as Blue Ghost completed its mission on the moon, the mood at Firefly’s mission operation in Austin was a mix of happiness and bittersweet anticipation for the spacecraft’s demise.

The sun had already set on the lunar surface where Blue Ghost had been working for two weeks, 15 million miles away from Earth.

For solar-powered spacecraft like Blue Ghost, time was running out, and the end was near.

Ray Allensworth, the director of the spaceship program at Firefly, described the atmosphere as light and enthusiastic as they reflected on the successful mission of Blue Ghost.

While other commercial moon missions have faced challenges, Blue Ghost’s success has provided NASA with valuable data for future collaborations.

Scientists like Robert Grimm at the Southwest Institute in Colorado, who led one of the scientific payloads, expressed gratitude for the successful mission, noting that it was better than ending up as a crater.

One of the NASA experiments on Blue Ghost captured images of the lunar surface, providing valuable insights for future missions and research.

The data collected by the cameras will help scientists understand the dynamics of lunar surfaces and potential hazards for future spacecraft landings.

Source: www.nytimes.com

NASA’s Spherex set to launch after delays, will map 450 million galaxies on mission

Posted on March 12, 2025 by Igor Mitreski

The new NASA Observatory was launched into space on Tuesday with a mission that would help scientists unravel what happened in the first fraction one second after the Big Bang.

The Spherex mission (short for Universe History, Reionization Epoch, Ice Explorer’s Spectroscopic Optical Meter) is designed to map the entire sky, study millions of galaxies, and stitch together how the universe has formed and evolved.

According to NASA, it has been postponed several times since late February to help engineers evaluate the rocket and its components recently due to bad weather at launch sites.

The cone-shaped spacecraft ended Tuesday at approximately 8:10pm above the Space Sex Falcon 9 rocket from Van Denburg Space Force Base in California. Also, to get into orbit there were four suitcase-sized satellites deployed on another mission by NASA to study the sun.

The $488 million Spherex Observatory will investigate the entire sky four times over a two-year mission. Spacecraft instruments observe the universe in 102 different colors or wavelengths.

The Spherex Observatory, located horizontally, allows you to see all three layers of photon shields and telescopes.
BAE System / NASA

Colors in the infrared range have longer wavelengths than what the eye sees, so they are essentially invisible to humans. However, in the universe, infrared light from stars, galaxies and other celestial bodies contains important information about composition, density, temperature and chemical composition.

A technique known as spectroscopy allows scientists to analyze infrared light and divide it into different colors, just like the way prisms divide sunlight into colorful rainbows. Therefore, data collected by the Spherex Observatory gives researchers insight into the chemistry and other properties of hundreds of millions of galaxies in the universe.

NASA said these observations would help scientists study how galaxies are formed, trace the origins of Milky Way waters, and connect what happened later. The Big Bang that Created the Universe Approximately 13.8 billion years ago.

Source: www.nbcnews.com

NASA’s solar probe achieves closest approach to the sun of any artificial object

Posted on December 21, 2024 by Igor Mitreski

overview

NASA’s Parker Solar Probe is expected to dive extremely close to the sun’s surface on December 24th.
The spacecraft will have to fly closer to the Sun than any other man-made object in history, less than 3.86 million miles away.
The mission was designed to study the Sun’s outer atmosphere and help researchers learn how solar storms erupt into space.

NASA is preparing to “taste” the sun on Christmas Eve.

The bureau’s Parker Solar Probe is just days away from making its closest approach ever to the Sun on Tuesday, when it will fly closer to our star than any other man-made object in history.

The spacecraft, about the size of a small car, is scheduled to dive to within 3.86 million miles of the sun’s surface at 6:40 a.m. ET on Tuesday. It passes by at approximately 430,000 miles per hour. According to NASA.

“If you think about it, it’s like going 96 percent of the way to the surface of the sun,” said Kelly Kolek, a program scientist in NASA’s heliophysics division.

Because mission controllers cannot communicate with the spacecraft during maneuvers, NASA will have to wait about three days before receiving a signal that the spacecraft has survived its rendezvous with the sun.

The first images of the close encounter will then likely be transmitted to Earth sometime in January, the agency said.

As the Parker Solar Probe swoops toward the Sun, it will likely fly through a plume of solar plasma and potentially fly into the star’s active regions, Kolek said.

The mission was designed to study the outermost part of the Sun’s atmosphere, an extremely hot region known as the corona. Scientists are keen to look at the corona up close because researchers have long puzzled over why the outer layer of the sun’s atmosphere is hundreds of times hotter than the star’s surface.

Observations of the corona will also help researchers study how storms that form on the sun’s surface erupt into space. For example, the spacecraft will be able to observe streams of the most energetic solar particles coming from the Sun and exploding into space at supersonic speeds.

“This is the birthplace of space weather,” Kolek said. “While we have observed space weather from afar, Parker is now living space weather. In the future, we will be able to better understand how space weather forms.” , when we look at solar storms through a telescope, we can understand what they mean for us here on Earth.”

During periods of intense space weather, the Sun can emit huge solar flares and streams of charged particles known as solar wind directly to Earth. When these explosions interact with Earth’s magnetic field, they could not only supercharge the aurora, but also damage satellites and take out power grids.

Kolek said the Parker Solar Probe mission will help researchers better predict space weather and its potential impacts, similar to the work meteorologists and atmospheric scientists do about weather on Earth. said it was helpful.

The Parker spacecraft launched into space in 2018 and has orbited the sun more than 20 times since then. The Christmas Eve flyby will be the first of three final flybys planned for the mission. The spacecraft is named after Eugene Parker, the pioneering astrophysicist at the University of Chicago who first theorized the existence of the solar wind. Mr. Parker passed away in 2022 at the age of 94.

Last month, the spacecraft flew near Venus in a maneuver intended to slingshot its way to the sun. The upcoming approach was timed to coincide with the sun’s most active period in its 11-year cycle. This busy phase is typically characterized by a flurry of solar storms and high magnetic activity and is known as solar maximum.

Scientists like Kolek are hoping the Parker Solar Probe will have a front-row seat if a storm hits the sun’s surface on Christmas Eve.

Source: www.nbcnews.com

Equipment deployed by NASA’s European Clipper spacecraft

Posted on November 27, 2024 by Igor Mitreski

NASA’s European Clipper, the largest spacecraft the agency has ever developed for a planetary mission, is already 20 million kilometers (13 million miles) from Earth.

An artist’s concept for NASA’s Europa Clipper shows the spacecraft silhouetted on the surface of Jupiter’s icy moon Europa, with the magnetometer boom fully deployed on top and the antenna for the radar instrument pointing out from the solar array. It’s growing. Image credit: NASA/JPL-Caltech.

Europa Clipper launched from NASA’s Kennedy Space Center in Florida on October 14, 2024.

The spacecraft is hurtling toward the Sun at 35 kilometers per second (22 miles per second).

Europa Clipper will travel 2.9 billion kilometers (1.8 billion miles) to reach Jupiter in 2030 and begin a series of 49 flybys in 2031, collecting data using an array of instruments. , will tell scientists whether the icy moon and its interior ocean influenced the icy moons. Conditions necessary for life to exist.

For now, the information mission teams are receiving from the spacecraft is strictly engineering data, telling them how the hardware is working.

Immediately after launch, Europa Clipper deployed a giant solar array extending the length of a basketball court.

Next on the list was the magnetometer boom, which unwound from a canister attached to the spacecraft body and stretched 8.5 meters (28 feet) in length.

To ensure that all boom deployments went well, the team used data from three magnetometer sensors.

Once the spacecraft reaches Jupiter, these sensors will measure Europa’s surrounding magnetic field, confirming the existence of an ocean believed to lie beneath the moon’s icy crust, and telling scientists about its depth and salinity. I’ll let you know.

After the magnetometer, the spacecraft deployed several antennas for radar instruments.

Four high-frequency antennas extend laterally from the solar array, forming what appear to be two long poles, each 17.6 m (57.7 ft) long.

Eight rectangular very high frequency antennas, each 2.76 m (9 ft) long, were also deployed, two on each of the two solar arrays.

“This is an exciting time for the spacecraft to complete these important deployments,” said Jordan Evans, a researcher at NASA’s Jet Propulsion Laboratory and project manager for Europa Clipper.

“Most of what the team is focused on right now is understanding the small, interesting things in the data that help us understand the behavior of the spacecraft on a deeper level. It’s really good to see that. That’s it.”

The remaining seven devices will be powered on and off throughout December and January so engineers can check their health.

Some instruments, including visible imagers and gas and dust mass spectrometers, will remain under protective covers for the next three years or so to prevent potential damage from the Sun while Europa Clipper was in the inner solar system. I plan to make it.

Once all equipment and engineering subsystems are checked out, the mission team will shift its focus to Mars.

On March 1, 2025, Europa Clipper will reach Mars’ orbit and begin orbiting Mars, using Mars’ gravity to gain speed.

The mission navigator has already completed one course correction maneuver to keep the spacecraft on the correct course as planned.

On Mars, as a test run, the rover’s thermal imager will be turned on to take multicolor images of Mars.

They also plan to collect data on the radar equipment so engineers can verify that it is working as expected.

The spacecraft is scheduled to perform another gravity assist in December 2026 and swoop down to Earth before making the remainder of its long journey to the Jupiter system.

At that time, the magnetometer measures the Earth’s magnetic field and calibrates the instrument.

Source: www.sci.news

New Hera probe sent to study asteroid target of NASA’s previous experiment

Posted on October 8, 2024 by Igor Mitreski

On Monday, a spacecraft was launched to investigate. Space collision site.

The European Space Agency’s Hera spacecraft was rocket-launched on a two-year journey to the small, harmless asteroid it crashed into. Two years ago, NASA During that day’s dress rehearsal, a killer space stone threatens Earth. The experiment, launched by SpaceX from Cape Canaveral, is the second in a series of planetary defense tests that could one day save the planet.

Crash in 2022 NASA dart spacecraft This shortens Dimorphos’ orbit around its larger brethren, indicating that if a dangerous rock is headed in our direction, it can be thrown off course with sufficient advance notice. I did.

Scientists want to study the impact’s aftermath up close to learn exactly how effective Dart was and what changes are needed to protect the planet in the future.

“The more details we can gather, the more details we can gather because it could be important in planning future deflection missions if they are needed,” University of Maryland astronomer Derek Richardson said before the launch. It’s good enough.”

Researchers want to know whether Dart (short for Double Asteroid Redirection Test) left behind a crater or changed the shape of the 500-foot (150-meter) asteroid more dramatically. Richardson, who participates in the dart mission and supports Hera, said that before the dart was shot, it looked like a flying saucer, but now it may resemble a kidney bean.

ESA’s Hera mission lifted off at 10:52 a.m. Monday aboard a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station in Florida.
S. Korbach / ESA

The flurry of darts sent debris and even rocks flying from Dimorphos, further increasing the force of the impact. The debris trail stretched thousands of miles (more than 10,000 kilometers) into space over several months.

Flight director Ignacio Tanco said rocks and other debris may still be floating around the asteroid, posing a potential threat to Hera.

“We don’t really know what kind of environment we’re going to operate in,” Tanko says. “But the whole point of this mission is to go out there and find out.”

European officials described the $400 million (363 million euro) mission as an “investigation of the accident scene.”

Project manager Ian Carnelli said Hera was “returning to the crime scene and obtaining all the scientific and technical information”.

Hera, which is about the size of a small car and carries more than a dozen scientific instruments, needs to fly past Mars in 2025 to increase its gravity and reach Dimorphos by the end of 2026. This is a satellite of the fast-spinning asteroid Didymos, which means twins in Greek. It’s 5 times bigger. At that point, the asteroid will be 120 million miles (195 million kilometers) from Earth.

Hera, controlled by a flight team in Darmstadt, Germany, will attempt to enter orbit around the pair of rocks as its flight range gradually decreases from 18 miles (30 kilometers) to half a mile (1 kilometer). The spacecraft will study the satellite for at least six months, determining its mass, shape, composition, and orbit around Didymos.

Before impact, Dimorphos circled its larger mate from three-quarters of a mile (1,189 meters) away. Scientists believe the orbit could become tighter and more elliptical, potentially even causing the satellite to fall off.

Source: www.nbcnews.com

NASA’s wise decision to implement a backup plan proved crucial in wake of the Starliner grounding

Posted on September 5, 2024 by Igor Mitreski

Whenever a rocket launch or mission goes wrong, experts always say the same thing: “Space is hard.” As advances in the space industry accelerate, this mantra has only grown more important, if not less, as we face—and, for the most part, overcome—the challenges of spaceflight with increasing frequency.

The situation that has unfolded aboard the International Space Station (ISS) over the past few months is a case in point: Boeing’s Starliner spacecraft successfully completed its first manned flight on June 5, but a hardware problem meant that after arriving at the ISS it was unclear whether the two NASA astronauts on board would be able to safely return to Earth as scheduled.

So after ground tests and much deliberation, NASA reversed course, announcing that its astronauts would stay longer and return instead in February 2025 aboard SpaceX’s Crew Dragon spacecraft (see “Astronauts stranded on ISS reveal U.S. space program not in peril.”) A potentially catastrophic problem was reduced to a mere inconvenience thanks to NASA’s wise decision a decade ago to hire not one but two companies to build the capsules that would carry astronauts into space. We’d always known space was a tough place, and preparation paid off.

The first ever private spacewalk will likely be the most dangerous one ever.

Hopefully, the thorough preparations will also pay off for the crew of SpaceX’s upcoming Polaris Dawn mission, which, if all goes well, will conduct the first-ever civilian spacewalk, and perhaps the most dangerous one ever (see page 8).

If the flight goes well, it will be another big win for commercial spaceflight, and especially for SpaceX, as it will be the first test of the company’s new spacesuit. Aging spacesuits have been a big problem for NASA and other space agencies for decades. The spacesuits NASA uses are the same ones astronauts wore in the 1980s and are long past their prime. A new spacesuit that is comfortable for civilians to wear, has better mobility, better temperature regulation and is more reliable would be a big win. It would make life in space a little easier.

topic:

Source: www.newscientist.com

For the First Time, NASA’s Endurance Mission Measures Earth’s Bipolar Electric Field

Posted on August 29, 2024 by Igor Mitreski

First hypothesized over 60 years ago Bipolar electric field Polar winds are the primary driver of a constant outflow of charged particles into space above the Earth’s poles. These electric fields lift charged particles in the upper atmosphere to higher altitudes than usual, and may have shaped the evolution of Earth in ways that are still unknown.

Collinson othersThey report that a potential drop of +0.55 ± 0.09 V exists between 250 km and 768 km due to the planetary electrostatic field, generated solely by the outward pressure of ionospheric electrons. They experimentally demonstrate that the Earth’s ambipolar field controls the structure of the polar ionosphere, increasing its scale height by 271%. Image courtesy of NASA.

Since the 1960s, spacecraft flying over Earth’s poles have detected streams of particles streaming from Earth’s atmosphere into space.

Theorists predicted these outflows, named them polar winds, and stimulated research to understand their causes.

Some outflow from the atmosphere was expected — intense, unobstructed sunlight should send some atmospheric particles escaping into space, like water vapor evaporating from a pot of water — but the observed polar winds were more puzzling.

Many of the particles inside were cold and showed no signs of heating, but they were moving at supersonic speeds.

“Something must be attracting these particles to the outer reaches of the atmosphere,” said Dr. Glynn Collinson, Endurance mission principal investigator and a researcher at NASA’s Goddard Space Flight Center.

The electric fields, hypothesized to be generated at subatomic levels, would be incredibly weak and their effects would be expected to be felt only for distances of hundreds of miles.

For decades, detecting it has been beyond the limits of existing technology.

In 2016, Dr Collinson and his colleagues began inventing a new instrument that they thought would be suitable for measuring Earth’s bipolar magnetic field.

The team’s equipment and ideas were perfectly suited for a suborbital rocket flight launched from the Arctic.

The researchers named the mission “Antarctic Expedition,” in honor of the ship that carried Ernest Shackleton on his famous 1914 Antarctic voyage. Endurance.

They set course for Svalbard, a Norwegian island just a few hundred miles from the North Pole and home to the world’s northernmost rocket launch site.

“Svalbard is the only rocket launch site in the world that can fly through the polar winds and make the measurements we need,” said Dr Susie Ingber, an astrophysicist at the University of Leicester.

Endurance was launched on May 11, 2022, reaching an altitude of 768.03 kilometers (477.23 miles) and splashing down in the Greenland Sea 19 minutes later.

Over the 518.2 kilometres (322 miles) altitude where Endurance collected data, it measured a change in electrical potential of just 0.55 volts (V).

“Half a volt is almost meaningless – it’s about the strength of a watch battery – but it’s just right for describing polar winds,” Dr Collinson said.

Hydrogen ions, the most abundant type of particle in the polar wind, experience an outward force from this field that is 10.6 times stronger than gravity.

“That’s more than enough to counter gravity, in fact to launch you into space at supersonic speeds,” said Dr. Alex Grosser, a research scientist at NASA’s Goddard Space Flight Center and Endurance project scientist.

Heavier particles are also accelerated: an oxygen ion at the same altitude, immersed in this 0.5 volt electric field, loses half its mass.

In general, scientists have found that bipolar magnetic fields increase what’s called the scale height of the ionosphere by 271%, meaning the ionosphere remains denser up to higher altitudes than it would be without the bipolar magnetic field.

“It’s like a conveyor belt that lifts the atmosphere up into space,” Dr Collinson said.

The Endurance discovery has opened up many new avenues of exploration.

The polarity field, as a fundamental energy field of the Earth alongside gravity and magnetism, may have continually shaped the evolution of the atmosphere in ways that we are only now beginning to explore.

Because it is generated by the internal dynamics of the atmosphere, similar electric fields are expected to exist on other planets, including Venus and Mars.

“Any planet with an atmosphere should have a bipolar magnetic field, and now that we’ve finally measured it we can start to learn how it has shaped our planet and other planets over time,” Dr Collinson said.

Team result Published in a journal Nature.

_____

G.A. Collinson others2024. Earth’s bipolar electrostatic field and its role in the escape of ions into space. Nature 632, 1021-1025;doi:10.1038/s41586-024-07480-3

This article is a version of a press release from NASA Goddard Space Flight Center.

Source: www.sci.news

Cancellation of NASA’s VIPER lunar rover jeopardizes Artemis crewed landing in 2026

Posted on July 18, 2024 by Igor Mitreski

VIPER won’t go to the moon after all

National Aeronautics and Space Administration (NASA)

NASA has announced that a completed rover scheduled for launch to the moon next year will be dismantled due to budgetary issues, leading researchers to question whether the space agency is really committed to landing a crewed spacecraft on the moon in 2026 as it currently claims.

The Volatile Investigation Polar Rover (VIPER) would be sent to the moon’s south pole in September 2025 to search for water ice. The rover, equipped with a drill, would search for subsurface ice in several locations on the moon, including in craters that are permanently in shadow.

But on July 17, NASA announced it was canceling the mission. “Decisions like these are never easy,” Nicola Fox, associate administrator for NASA’s Science Mission Directorate, said in a statement. “But in this case, VIPER’s remaining projected costs would have forced us to cancel or terminate many other missions, so we have made the decision to abandon this particular mission.”

NASA has already spent $450 million on the rover, and canceling it is expected to save only $84 million. NASA says it welcomes “expressions of interest from U.S. industry and international partners” to purchase VIPER, but if this does not occur by August 1, VIPER will be dismantled with the aim of reusing its parts for future missions.

Phil Metzger Metzger of the University of Central Florida said canceling the mission would be a “huge mistake” for NASA, especially since the space agency has ambitious goals of landing humans on the moon’s south pole in 2026 as part of its Artemis program. It could also jeopardize plans to use lunar ice as a source of rocket fuel. “The rover with the drill is an absolutely essential part of the mission,” Metzger said. “It would definitely have some impact on plans for a human mission.”

The cancellation of VIPER could also give China an advantage in lunar resource exploration: The unmanned probes Chang’e-7 and Chang’e-8, scheduled for 2026 and 2028, respectively, are set to head to the lunar south pole to search for water ice.

Grant Tremblay Researchers at the Harvard-Smithsonian Center for Astrophysics said the cancellations highlight the budgetary challenges facing NASA and other U.S. government agencies, which have Funding is down 8.5% this year The funding came in just under $25 billion, less than the requested amount. “This is a perfect example of how tight the budget is across the board at NASA,” Tremblay said. “NASA can’t print money.”

Other NASA missions, including the Chandra X-ray Observatory and the Mars Sample Return mission, which would bring rocks from Mars, are also facing cuts or cancellations due to shrinking budgets. “More bad news is sure to follow,” Tremblay said.

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Source: www.newscientist.com

NASA’s long-term plan to decommission the International Space Station

Posted on July 6, 2024 by Igor Mitreski

The International Space Station (ISS) has been operational since 2000 and is continuously manned by astronauts, orbiting Earth every 90 minutes.

Throughout its operation, the ISS has served as a hub for scientific experiments, space travel research, and international cooperation. Over 280 astronauts from more than 23 countries have visited the space station.

However, as the decade nears its end, the ISS is reaching the end of its functional lifespan, prompting the need to address its future once it’s no longer in use.

Abandoning the craft is not an option due to its size and potential risk to other satellites in orbit. NASA has explored various options, including pushing the ISS higher, but ultimately determined that salvaging parts for historical preservation or technical analysis would be too complex and costly.

Therefore, the only viable solution is to deorbit the ISS. SpaceX, led by Elon Musk, has been awarded an $843 million contract by NASA to develop and deliver a deorbit vehicle for the ISS.

Plans are still being finalized, but the general idea is for the deorbit vehicle to guide the ISS into the atmosphere, where most of it will burn up upon re-entry. Careful considerations will be made to ensure any remaining parts land in uninhabited areas.

With the ISS’s days numbered, the future of space habitation is shifting towards private sector initiatives, such as NASA’s Commercial Low Earth Orbit Development program and the Lunar Gateway project.

Despite the end of the ISS era, experts like Dr. Darren Baskill emphasize the station’s contributions to science, exploration, and international collaboration, paving the way for future advancements in space.

About our experts

Darren Baskill is an Outreach Officer and Lecturer at the University of Sussex, with a background in astronomy and science outreach.

Source: www.sciencefocus.com

Equipment failure forces NASA’s Hubble Space Telescope to scale back observations

Posted on June 5, 2024 by Igor Mitreski

Hubble encountered additional difficulties.

The space telescope entered hibernation over a week ago due to the failure of one of its three remaining gyroscopes, which are part of its pointing system. This same gyro had been malfunctioning for months, affecting its scientific capabilities.

NASA confirmed on Tuesday that efforts to repair the gyro had been unsuccessful, leaving the spacecraft operating with just one gyroscope, limiting its scientific functions.

As a result, Hubble will be inactive until mid-June. The telescope will have reduced agility and slower target acquisition. Despite these limitations, officials believe that Hubble will still be able to make significant discoveries in the coming decade.

“We are optimistic about Hubble’s future,” said Patrick Close, NASA’s project manager.

Mark Crump, NASA’s astrophysics director, stated that there are currently no plans to launch a mission to extend Hubble’s life by raising it to a higher orbit.

A billionaire who has booked SpaceX flights for himself has offered to sponsor and perform the necessary repairs. However, Crumpen expressed concerns about the risks involved and the need for further analysis.

The Hubble Telescope was launched into orbit in 1990, initially facing challenges due to a misaligned mirror. After a successful repair mission, Hubble resumed its observations of the cosmos in remarkable detail.

During a visit in 2009, astronauts installed six new gyroscopes on Hubble. Unfortunately, three of them have stopped functioning. These gyroscopes are crucial for maintaining the telescope’s stability and orientation.

Currently, only two gyroscopes are operational, one for pointing and the other as a backup.

The Webb Space Telescope, a more advanced successor to Hubble, is set to launch in 2021.

Source: www.nbcnews.com

NASA’s Ongoing Efforts to Save Voyager 1: A Closer Look

Posted on April 26, 2024 by Igor Mitreski

Voyager 1 faced a critical issue when it was first discovered in November. NASA acknowledged that while the spacecraft was still in communication with Earth, the signals being received were indecipherable. This led to a concentrated effort over a month to identify and rectify the problem, saving the Voyager 1 mission.

Despite the challenges faced by the team, including the difficulty of troubleshooting a spacecraft over 15 billion miles away in interstellar space, there remained hope and determination to overcome the obstacles.

The main culprit was found to be a hardware failure in one of Voyager 1’s three computers, resulting in corrupted code that hindered the transmission of crucial updates and data. Unfortunately, the chip containing the problematic software was deemed irreparable.

However, a solution was devised by splitting and storing the code in different memory locations of the computer. This allowed for the affected sections to be reprogrammed, ensuring the continued functionality of the system.

Following meticulous verification and testing processes, Voyager 1 gradually resumed its normal operations, as confirmed by NASA’s recent update.

The Voyager missions, launched in 1977, have been instrumental in exploring the outer regions of our solar system. Voyager 1, now in interstellar space, continues to transmit valuable data and may well do so until the 2030s, serving as an enduring reminder of human exploration.

Both Voyager probes carry time capsules containing images and sounds representing Earth and its inhabitants, intended to be discovered by extraterrestrial beings in the distant future.

“Our silent ambassadors,” as Voyager 1 and 2 are affectionately known, will continue their journey for millennia, potentially reaching other stars and civilizations,” remarked Spilker.

Source: www.nbcnews.com

NASA’s revolutionary new mission using solar sails may pave the way for interstellar travel

Posted on April 26, 2024 by Igor Mitreski

Humanity has always dreamed of traveling beyond our solar system to the stars, but the vastness of the universe has kept us grounded. Our closest star, Proxima Centauri, is a staggering 4.24 light years away, which is too far for us to wait patiently.

Recently, on April 23, NASA launched the Advanced Composite Solar Sail System from New Zealand, a system that uses lightweight sails to propel spacecraft instead of traditional rockets. This development has excited both experts and science fiction fans, as it opens up possibilities for long-distance space travel.

How solar sail works

Instead of using thrusters and fuel like traditional spacecraft, solar sail systems use reflective sails to absorb momentum from photons emitted by the sun. This technology enables spacecraft to gain acceleration without the limitations of fuel. In space, where there is no air resistance, a slight push from the sun is all that’s needed for propulsion.

Solar sails operate similar to sailing ships, utilizing the momentum of photons for movement. By harnessing the sun’s energy, spacecraft can travel far distances at manageable speeds.

How fast can an interstellar probe travel with a solar sail?

The speed of a solar sail system depends on factors like the size of the sail, spacecraft mass, and distance from the sun. With creative maneuvers like slingshot maneuvers and potential laser boosts, spacecraft using solar sails can achieve speeds close to 20% of the speed of light.

Future solar sail systems could reach speeds up to 20 percent of the speed of light. – Image credit: NASA/Aero Animation/Ben Schweighart

Will humanity ever be able to sail to another planet?

Potentially, solar sail technology could pave the way for human interstellar travel in the future. However, there are challenges, such as sustaining long-term missions for generations and addressing relativistic effects caused by near-light speed travel.

What exactly is NASA's solar sail mission?

NASA’s Advanced Composite Solar Sail System is a demonstration of solar sail technology that aims to test a new lightweight boom made of flexible materials. The mission involves a CubeSat deploying an 80 square meter sail in orbit to gather data for future solar sail missions.

About our experts

patrick johnson is an associate professor at Georgetown University with expertise in quantum mechanics. He authored the book “Star Wars Physics” and has contributed to scientific journals like Physical Review.

Source: www.sciencefocus.com

Close-Up View of Io’s Unique Features Captured by NASA’s Juno Mission

Posted on April 20, 2024 by Igor Mitreski

In December 2023 and February 2024, NASA’s Juno spacecraft will fly extremely close to Jupiter’s volcanic moon Io, coming within about 1,500 kilometers (930 miles) of the surface and obtaining the first close-up images of the moon’s northern latitudes. Planetary scientists have now turned images collected during the flight into animations that show two of Io’s most dramatic features: its mountains and a nearly glassy rock formed by cooling lava called Loki Patera. It emphasized the smooth lake.

The JunoCam instrument aboard NASA’s Juno spacecraft imaged Io, the most geologically active object in the solar system, on February 3, 2024, from a distance of approximately 7,904 km (4,911 miles) . Image credit: NASA/SwRI/MSSS.

“There are only a few scattered volcanoes on the island of Io, and we captured some of them active,” said Juno principal investigator and Southwest Research Institute cosmologist. said Scott Bolton, director of science and engineering.

“We also obtained great close-ups and other data about a 200 km (127 mile) long lava lake called Loki Patera.”

“It shows in amazing detail how these crazy islands are embedded in the middle of a potential magma lake fringed with hot lava.”

“The specular reflections that our instruments record about the lake suggest that parts of Io’s surface are glass-smooth, reminiscent of the obsidian glass produced in volcanoes on Earth. “

Map generated using data collected by Juno microwave radiometer (MWR)’s instruments revealed that Io not only has a relatively smooth surface compared to Jupiter’s other Galilean moons, but also has poles that are colder than the mid-latitudes.

During Juno’s long-term mission, the spacecraft will fly closer to Jupiter’s north pole with each pass.

This change in direction allows the MWR instrument to improve the resolution of Jupiter’s polar cyclones.

This data allows us to compare multiple wavelengths at the poles and reveals that not all polar cyclones are created equal.

“Perhaps the most striking example of this difference is seen in the central cyclone at Jupiter’s north pole,” said Dr. Steve Levin, Juno project scientist and researcher at NASA’s Jet Propulsion Laboratory. states.

“Although clearly visible in both infrared and visible light images, the microwave signature is not as strong as other nearby storms.”

“This indicates that its subsurface structure must be very different from other cyclones.”

“As the MWR team continues to collect more and better microwave data in every orbit, we expect to develop more detailed 3D maps of these interesting polar storms.”

Source: www.sci.news

2024 Solar Eclipse Live: Watch NASA’s broadcast of the total eclipse – New Updates

Posted on April 7, 2024 by Igor Mitreski

On April 8th, a total solar eclipse will occur in Mexico, the United States, and Canada. This type of solar eclipse only occurs when the sun and moon line up perfectly in the sky, causing the moon to cover the entire disk of the sun and cast a shadow on Earth. The path this shadow follows as it crosses the ground at speeds exceeding 2,400 kilometers per hour is called a total path, and during this eclipse, the shadow will cross from the west coast of Mexico, across 13 states of the United States, to Ontario, Quebec, Newfoundland, and beyond. At any given location, totality lasts from about 90 seconds to nearly 4.5 minutes.

During this period, the sky becomes dark as at dusk and the temperature drops by 10 degrees. Viewers will be able to remove their eclipse glasses, which are essential during the partial phase of the eclipse, and look directly at the Sun, which is covered by the Moon. At this range, the sun’s outermost layer, the corona, becomes visible. At other times, it may be too dark to see due to the glare of the sun. Total solar eclipses like this one are rare opportunities for researchers studying the sun and have led to major scientific advances over the years.

Solar eclipse in 2024

On April 8th, a total solar eclipse will pass over Mexico, the United States, and Canada. Our special series covers everything you need to know, from how and when to see a solar eclipse to the strangest solar eclipse experience of all time.

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Source: www.newscientist.com

Europa Clipper: NASA’s Mission to Jupiter’s Moons Explores Possibility of Extraterrestrial Life

Posted on March 22, 2024 by Igor Mitreski

Artist’s impression of the European Clipper near its namesake moon

NASA

Instruments aboard a NASA spacecraft scheduled to launch to Europe later this year could directly detect cellular material ejected from Jupiter’s icy moons, increasing the chances of finding life.

Europa is of scientific interest because researchers believe there is a vast saltwater ocean beneath its thick icy shell. It is also surrounded by an orbiting blanket of ice grains and dust, believed to be the remains of material kicked up after the meteorite struck.

NASA’s Europa Clipper spacecraft was launched in October and is scheduled to arrive at its destination in 2030, flying close to the moon but not landing on it. Ten experiments will be carried out aimed at studying Europa’s internal structure, including its ocean chemistry and potential habitability for extraterrestrial life.

One of these is the SUrface Dust Analyzer (SUDA), a type of instrument known as a mass spectrometer. The mission will collect material ejected from the moon and reveal its chemical composition, including potential organic molecules and salts.

SUDA was not designed to look for signs of life in Europe, but now Frank Postberg and his colleagues at Germany’s Freie Universität Berlin, who are working on the device, have shown that it can detect fragments of cellular material, potentially providing evidence of modern life.

“If life on Europa follows the same principle of having membranes and DNA made from amino acids… [those chemicals] “It will be the deciding blow of my life,” he says.

“This is an interesting result because these ice grains hit the instruments in space at speeds of 4 to 6 kilometers per second,” say team members. Fabian Krenner at the University of Washington. “We showed that we can still identify cellular material.”

These extreme velocities cause particles to collide with SUDA with high kinetic energy, breaking large molecular structures into smaller component parts for analysis. To simulate this kinetic energy, the team shot water droplets with a laser. I put the following sample into water. Sphingopyxis alascensisa bacterium known to survive in frigid marine environments, making it a potential alternative to life on Europa.

When the laser hits the droplet, it breaks up into tiny droplets that hit the SUDA detector. The researchers discovered that they could distinguish between fragmented cellular material, including fatty acids and amino acids, which are abundant in cell membranes.

“We have now simulated the presence of cells inside a single ice grain without any pretreatment, which may be a valid case for what we see in Europe,” Klenner said. To tell. The next step, he says, is to repeat the experiment using different types of cell cultures.

Murti Gudipati He works on SUDA at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., but is not involved in the research. The results should reflect what could happen to the spacecraft, he said. Watch while on duty.

But the ability to clearly distinguish cellular material from other organic molecules and salts depends on the specific composition of the ice grains released from Europa, he says. If SUDA detects many other complex organic molecules and salts mixed in with the ice grains, it may be difficult for researchers to reliably detect cellular material, Gudipati says.

the current, NASA says When asked, “Europa Clipper is not a life-detecting mission. Its primary science goal is to determine whether there is a place beneath Europa’s surface where life could exist.” new scientist The agency was unable to respond prior to publication about whether the new research changes the mission’s goals.

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Source: www.newscientist.com

NASA’s DART mission may have reshaped the asteroid moon Dimorphos

Posted on February 29, 2024 by Igor Mitreski

On September 26, 2022, NASA’s Double Asteroid Redirection Test (DART) mission successfully impacted Dimorphos, the natural satellite of the near-Earth binary asteroid Didymos. New numerical simulations show that the DART impact triggered global deformation and resurfacing of Dimorphos.

The asteroid moon Dimorphos was seen by NASA’s DART spacecraft 11 seconds before impact. His DRACO imager aboard DART captured this image from a distance of 68 km (42 miles). This image was the last one to include all dimorphos in the field of view. Image credit: NASA/Hopkins Applied Physics Laboratory.

DART was a planetary defense mission that demonstrated the possibility of using kinetic impactors to alter the orbits of asteroids.

The collision was successful and highly effective, resulting in Dimorphos’ orbital period around Didymus being shortened from its original 11 hours and 55 minutes to 33 minutes.

The LICIACube Unit Key Explorer (LUKE) instrument aboard the cubesat took images of the system between 29 seconds and 320 seconds after impact, showing the ejecta stream and other debris that spread for several kilometers from the impact site. revealed a complex pattern.

Furthermore, the dramatic brightening of the Didymos system due to solar illumination of the ejected impact ejecta was observed by ground-based and space-based telescopes for many weeks after the impact.

These three Hubble images capture the breakup of Dimorphos when it was intentionally collided by DART on September 26, 2022. The top panel, taken two hours after impact, shows the ejecta cone (estimated at 1,000 tons of dust). The center frame shows dynamic interactions within the Didymos-Dimorphos binary system that begin to distort the cone of ejecta patterns approximately 17 hours after impact. The most notable structure is a rotating windmill-shaped feature. The windmill is connected to Didymus’s gravitational pull. In the bottom frame, Hubble captures debris being pushed back into the comet-like tail by the pressure of sunlight on tiny dust particles. This spreads out into a column of debris, with the lightest particles traveling fastest and furthest away from the asteroid. The mystery deepens after Hubble recorded the tail splitting into two for several days. Image credit: NASA/ESA/STScI/Jian-Yang Li, PSI/Joseph DePasquale, STScI.

In a new study, University of Bern scientist Sabina Raducan and colleagues use realistic constraints on the mechanical and compositional properties of dimorphos, informed by DART’s initial results, to create a state-of-the-art impact The DART impact was modeled using physical code.

The simulations that best match observations of the impact suggest that Dimorphos is weakly cohesive, similar to asteroids Bennu and Ryugu, and lacks large rocks on its surface.

The researchers suggest that Dimorphos may be a pile of debris formed by the rotational shedding and re-accumulation of material ejected from Didymos.

Their model also suggests that DART’s impact may not have created an impact crater, but instead may have changed the shape of the moon as a whole, a process known as global deformation, which could have been caused by material from within. It also indicates that it may have caused the resurfacing of Dimorphos.

The discovery provides further insight into the formation and characteristics of binary asteroids and could have implications for future exploration, including ESA’s Hera mission and asteroid deflection efforts.

“ESA’s future Hera mission may discover reformed asteroids rather than well-defined craters,” the authors concluded.

their paper It was published in the magazine natural astronomy.

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SD Raducan other. Physical properties of the asteroid Dimorphos obtained from the DART impact. Nat Astron, published online on February 26, 2024. doi: 10.1038/s41550-024-02200-3

Source: www.sci.news

Stunning Images of Jupiter’s Moon Io Captured by NASA’s Juno Orbiter

Posted on February 10, 2024 by Igor Mitreski

On February 3, 2024, NASA's Juno spacecraft made its second close approach to Io, the fifth and third largest of Jupiter's moons. Like the previous flyby on December 30, 2023, this second pass was approximately 1,500 kilometers (930 miles) away. During the twins' flyby, the spacecraft's JunoCam instrument returned stunning high-resolution images and raw data. The flyby is designed to provide new insights into how Io's volcanic engines work and whether a global magma ocean exists beneath the volcanic moon's rocky, mountainous surface. has been done.

The JunoCam instrument aboard NASA's Juno spacecraft imaged Io, the most geologically active object in the solar system, on February 3, 2024, from a distance of approximately 7,904 km (4,911 miles) . Image credit: NASA/SwRI/MSSS.

Io is the innermost of Jupiter's four Galilean moons and the fourth largest moon in the solar system.

Its diameter is about 3,630 km (2,556 miles), making it only slightly larger than our moon.

It is the only place in the solar system other than Earth that is known to have volcanoes spewing hot lava like those on Earth.

Io has over 400 active volcanoes, which are caused by tidal heating. This is the result of a gravitational tug of war between Jupiter's gravity and the small but precisely timed gravitational pulls from Europa and Ganymede.

The moon's yellow, white, orange, and red colors are produced by sulfur dioxide, frost on its surface, elemental sulfur, and various sulfur allotropes.

The volcano was first discovered on the island of Io in 1979, and since then studies using NASA's Galileo spacecraft and ground-based telescopes have shown that eruptions and lava fountains occur constantly, forming rivers and lakes of lava. Masu.

Only 13 large eruptions were observed between 1978 and 2006, in part because fewer astronomers were scanning the moon on a regular basis.

The JunoCam instrument aboard NASA's Juno spacecraft imaged Io on December 30, 2023, from a distance of approximately 5,857 km (3,639 miles). Image credit: NASA/SwRI/MSSS.

NASA's Juno spacecraft has been monitoring Io's volcanic activity from distances ranging from about 11,000 km (6,830 miles) to more than 100,000 km (62,100 miles), providing the first view of the moon's north and south poles .

On December 30, 2023, Juno came within approximately 1,500 km of Io's surface. The orbiter made her second close flyby of the Moon on February 3, 2024.

The second flyby mainly flew over Io's southern hemisphere, but previous flybys flew over Io's northern hemisphere.

Juno captured two plumes rising above Io's horizon on February 3, 2024. These plumes were emitted from two vents from one giant volcano, or from two volcanoes located close to each other. The JunoCam instrument photographed the plume from a distance of approximately 3,800 km (2,400 miles). Image credit: NASA / JPL-Caltech / SwRI / MSSS / Andrea Luck.

“We investigate the source of Io's massive volcanic activity, whether there is a magma ocean beneath its crust, and the importance of tidal forces from Jupiter that are relentlessly squeezing this beleaguered moon. doing.”

“There are active plumes, high mountain peaks with distinct shadows, and evidence of lava lakes, some of which look like islands.”

Starting in April 2024, Juno will conduct a series of occultation experiments that will use Juno's gravity science experiments to investigate the composition of Jupiter's upper atmosphere. This provides important information about the planet's shape and internal structure.

Source: www.sci.news

Vulcan Launch: Exploring the Reasons Behind NASA’s Return to the Moon

Posted on January 8, 2024 by Igor Mitreski

On January 8th, a Vulcan rocket carrying a lander bound for the moon will be launched from Cape Canaveral, Florida.

Greg Newton/AFP via Getty Images

NASA's first mission to the moon since the Apollo missions of the 1970s began with the launch of a new Vulcan rocket carrying a robotic lander carrying seven scientific instruments.

The mission, which launched at 7:18 a.m. GMT on January 8 from Cape Canaveral, Florida, forms the first part of NASA's ambitious Commercial Lunar Payload Service (CLPS) program, which will launch this year. Six more launches are planned.

Unlike previous NASA missions, which were carried out almost entirely in-house, these efforts will be a public-private partnership with support from space companies. The Vulcan rocket was built by Boeing and Lockheed Martin as part of the United Launch Alliance (ULA), and the Peregrine robotic lander was built by space robotics company Astrobotic.

The lander will take 46 days to reach the moon and will attempt to land on February 23rd. If successful, it will be the first time a private spacecraft has landed on the moon.

There are several reasons why it took NASA decades to return to the moon, but the biggest one is a lack of government funding. As Cold War spending increased in the 1960s, the total federal funding NASA received peaked in 1965, and as the U.S. government made cuts, there was too little money available for further lunar exploration.

But private space companies like Elon Musk's SpaceX are now cutting the cost of space launches, allowing NASA to plan new moon missions on tighter budgets.

A successful launch could also intensify competition among private space companies. ULA was the dominant force in the U.S. space launch business before SpaceX conducted the majority of U.S. launches and dominated the launch market. Vulcan could help ULA regain lost market share.

This is especially important for ULA because it is currently on the market, with potential buyers including Jeff Bezos' spaceflight company Blue Origin.

The Peregrine lander's science instruments include lunar surface water and radiation sensors and will be essential for NASA's future human missions in the coming years as part of the CLPS program. It also carries a 2-kilogram rover designed by students at Carnegie Mellon University in Pennsylvania and five small robots built by the Mexican Space Agency.

Vulcan has two additional payloads that have caused controversy. A company called Celestis uses cremated ashes to conduct so-called “commemorative spaceflights.” Star Trek Creator Gene Roddenberry and actors James Doohan and Nichelle Nichols will be placed into orbit around the sun, while another capsule will contain the ashes of others bound for the moon. .

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Source: www.newscientist.com

NASA’s Rotating Explosive Rocket Engine Takes Flight with 3D Printing Technology

Posted on December 27, 2023 by Igor Mitreski

by Ramon J. Osorio, NASA Marshall Space Flight Center December 26, 2023

Engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, successfully completed a 251-second high-temperature combustion test of a full-scale rotary explosion rocket engine combustor in fall 2023, achieving more than 5,800 pounds of thrust. Credit: NASA

NASAMarshall Space Flight Center tested a 3D-printed Rotating Explosive Rocket Engine (RDRE) for more than four minutes and was able to generate significant thrust. This test is essential for deep space missions and represents a step forward in NASA’s development of an efficient propulsion system for the Moon. Mars vision.

NASA has achieved a new benchmark in the development of an innovative propulsion system called the Rotating Explosive Rocket Engine (RDRE). Engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, tested his new 3D-printed RDRE for 251 seconds (or over four minutes) and were able to generate more than 5,800 pounds of thrust.

This type of sustained burn emulates the typical requirements for a lander touchdown or deep space burn that could set a spacecraft on a course from the Moon to Mars, the center said. said Thomas Teasley, lead Marshall combustion equipment engineer.

RDRE’s first high-temperature fire test was conducted in Marshall in the summer of 2022 in partnership with In Space LLC and Purdue University (Lafayette, Indiana). The test generated more than 4,000 pounds of thrust for nearly a minute. The main objective of the latest tests was to extend the combustor to different thrust classes, support all types of engine systems, and maximize the diversity of missions it can deliver, from landers to upper stages to supersonics. Teasley said the key is to better understand how to increase the Reverse propulsion is a deceleration technique that has the potential to land larger payloads, and even humans, on the surface of Mars.

Test stand video taken at NASA’s Marshall Space Flight Center in Huntsville, Alabama, shows the ignition of a full-size rotary-explosion rocket engine combustor that ignited for a record 251 seconds and achieved more than 5,800 pounds of thrust. It is shown.

“RDRE significantly increases design efficiency,” he said. “This shows we are getting closer to developing lightweight propulsion systems that will allow us to send more mass and payloads into deep space, a critical component for NASA. From the moon to Mars vision. “

Engineers at NASA’s Glenn Research Center in Cleveland; Venus Aerospace, Houston, Texas, is working with NASA Marshall to identify ways to scale the technology for higher performance.

RDRE is managed and funded by the Game Changing Development Program within NASA’s Space Technology Mission Directorate.

Source: scitechdaily.com

Transforming NASA’s ISS Resupply with Revolutionary Technology

Posted on December 27, 2023 by Igor Mitreski

Illustration of Sierra Space’s first dream chaser, DC#1 (Tenacity). The Dream Chaser spacecraft developed by Sierra Space for NASA is gearing up for a demonstration mission to the ISS in 2024, with a focus on cargo delivery and in-orbit certification. .Credit: Sierra Space

NASA Sierra Space’s Dream Chaser spacecraft is scheduled for a demonstration flight to the ISS in 2024, carrying cargo transport and various on-orbit tests to ensure operational readiness for future missions. be exposed.NASA and Sierra Space are making progress toward the maiden flight of the company’s Dream Chaser spacecraft. international space station. The unmanned cargo spaceplane is scheduled to begin demonstration missions to orbital complexes in 2024 as part of NASA’s commercial resupply services.

Dream chaser and shooting starManufactured by Sierra Space, Louisville, Colorado, the Dream Chaser cargo system consists of two main elements: the Dream Chaser spacecraft and the Shooting Star cargo module. As a lifting body spacecraft, Dream Chaser is designed to be reused up to 15 times. HL-20 spacecraft It was developed at NASA’s Langley Research Center in Hampton, Virginia.Shooting Star, a spaceplane cargo module companion, is designed to support the transportation and disposal of pressurized and unpressurized cargo to the space station. The cargo module can only be used once and is disposed of before reentry.

The Dream Chaser system will be mounted on a ULA (United Launch Alliance) Vulcan Centaur rocket from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida, inside a 5-meter fairing. It can be launched by folding its wings. Fairing panels protect the spacecraft during ascent, but are discarded once it reaches orbit. Dream Chaser’s cargo module and wing-mounted solar arrays will be deployed during an autonomous rendezvous with the space station. In the event of disaster, Dream Chaser is designed to be ready for launch within as little as 24 hours.

NASA and Sierra Space are making progress toward the company’s Dream Chaser spacecraft’s maiden flight to the International Space Station. The unmanned cargo spaceplane is scheduled to begin demonstration missions to orbital complexes in 2024 as part of NASA’s commercial resupply services.Credit: Sierra SpaceMission overview

During the first flight, Sierra Space will conduct an in-orbit demonstration to qualify Dream Chaser for future missions. Teams from NASA Kennedy Space Center in Florida, NASA Johnson Space Center in Houston, and Dream Chaser Mission Control Center in Louisville, Colorado will monitor the flight. Sierra Space flight controllers will control the Dream Chaser spacecraft at the launch pad until it is handed over to NASA Kennedy’s Sierra Space ground operations team after landing.

The far-field demonstration will be conducted outside the vicinity of the space station before the spacecraft enters the invisible 2.5-by-1.25-by-1.25-mile (4-by-2-by-2-kilometer) boundary around the ellipsoid. . Rotating laboratory. These demonstrations are required before Dream His Chaser enters joint operations with his NASA team at Mission Control Center in Houston. These include demonstrating postural control, translational movements, and aborting functions.

Near-field demonstrations must be performed in close proximity to the space station, and include activation and use of light detection and ranging (LIDAR) sensors, responding to commands sent from the space station, retreating from the station in response to commands, and initially This includes maintaining proximity. 1,083 feet (330 meters) from the station, then 820 feet (250 meters), and finally 98 feet (30 meters). After the successful completion of the demonstration, Dream Chaser will move towards the space station.

As Dream Chaser approaches the orbiting laboratory, it will eventually park approximately 38 feet (11.5 meters) from the space station, where the station’s crew will use the Canadarm2 robotic arm to maneuver the spacecraft in front of the team on the ground. Hold on to the cargo module fixtures. Attach the cargo module to the earth-facing port of the Unity or Harmony module.

Dream Chaser will carry more than 7,800 pounds of cargo on its first flight to the International Space Station. On future missions, Dream Chaser is designed to remain on station for up to 75 days and deliver up to 11,500 pounds of cargo. Cargo can be loaded onto the spacecraft up to 24 hours before launch. Dream Chaser can return more than 3,500 pounds of cargo and experimental samples to Earth, and more than 8,700 pounds of trash can be disposed of during reentry using its cargo module.return to earthDream Chaser will remain on the space station for approximately 45 days before being uninstalled using Canadarm2. After departure, the spacecraft can land within 11 to 15 hours at the earliest, with the possibility of landing daily if weather conditions permit.

Dream Chaser’s landing weather criteria typically require crosswinds of less than 17.2 mph (15 knots), headwinds of less than 23 mph (20 knots), and tailwinds of less than 11.5 mph (10 knots). Thunderstorms, lightning, or rain within a 20-mile radius of the runway or 10 miles along the approach path are not acceptable conditions for landing. Detailed flight rules help controllers determine whether a landing opportunity is favorable.

A combination of Dream Chaser’s 26 Reaction Control System thrusters ignites, sending the spacecraft out of orbit. Dream Chaser re-entered Earth’s atmosphere and glided in the style of NASA’s Space Shuttle to a runway landing at Kennedy Launch and Landing Facility, becoming the first spacecraft to land at the facility since the Space Shuttle’s last flight in 2011. becomes.Once Dream Chaser is powered down after landing, the Sierra Space ground operations team will transport Dream Chaser to the Space Systems Processing Facility for necessary inspections, unload remaining NASA cargo, and prepare for the next mission. let’s start doing ….Sierra Space (formerly Sierra Nevada Corporation) was selected in 2016 as NASA’s third commercial cargo replenishment spacecraft to service the International Space Station.

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The Impact of NASA’s Reflectors on Our World

Posted on December 25, 2023 by Igor Mitreski

GPS satellites play a crucial role in Earth measurements by relaying information to other satellites. Laser retroreflector arrays (LRA) have emerged as a technological advancement that enhances the precision of geodesy, the study of the Earth’s shape and changes. LRAs enable the collection of precise distance measurements necessary for monitoring global phenomena like sea level rise and tectonic movements. They work by reflecting laser light back to its original source, allowing scientists to accurately measure changes in the Earth’s surface.

Numerous federal agencies, including NASA, the U.S. Space Command, U.S. Naval Research Laboratory, and the National Geospatial-Intelligence Agency, have been involved in improving the accuracy of Earth measurements. The use of LRAs has allowed geolocation of all Earth observations to improve, enabling scientists to strategize and anticipate changes in the Earth’s angular momentum, changes in the Earth’s figure, and significant geodetic factors.

Laser retroreflector arrays function by reflecting light directly back towards its original source, as they consist of mirrors placed at right angles. They are instrumental in providing precise location information to ground stations on Earth, aiding in pinpointing the Earth’s center of mass and aiding in geodetic measurements. The ability to measure minute changes in the Earth’s center of gravity is of utmost importance as it aids in quantifying and understanding larger shifts resulting from events like tsunamis or earthquakes.

Overall, the implementation of laser retroreflector arrays is essential in studying Earth’s shape, gravity, and rotation, as well as determining changes over time. It is a fundamental component of daily life that aids in understanding how the world is changing.

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NASA’s Infrared Telescope: A Remarkable Evolution

Posted on December 24, 2023 by Igor Mitreski

For the past 40 years, scientists have been using infrared space telescopes to study the universe, including NASA missions such as the Infrared Astronomy Satellite (IRAS) launched in 1983, the Spitzer Space Telescope launched in 2003, and the James Webb Space Telescope launched in 2021. Although the Webb Telescope has opened a new window to the universe, it builds on missions from 40 years ago, including Spitzer and the Infrared Astronomy Satellite. The James Webb Space Telescope is the largest and most powerful space observatory in history, celebrating its second anniversary since its launch. Its clarity of images has inspired the world, and scientists are just beginning to study its scientific benefits.

The success of Webb builds on four decades of work with space telescopes that also detect infrared light. Telescopes such as the IRAS and the Spitzer Space Telescope provide crucial insights into star formation, cosmic gas and dust clouds, and the existence of exoplanets. These telescopes have contributed to groundbreaking discoveries about the universe and have paved the way for future infrared missions, such as NASA’s upcoming SPHEREx and Nancy Grace Roman Space Telescope.

The legacy of these infrared space telescopes is reflected in the images of star-forming regions, such as Rho Ophiuchus and Fomalhaut, which have revealed previously hidden features and provided insight into the formation of stars and planets. Infrared light has become an essential tool for understanding the universe on various scales, from the study of galaxy evolution to the detection of exoplanets and the investigation of dark energy.

The Webb Telescope is paving the way for complex and diverse scientific questions by building upon the knowledge gained from previous infrared telescopes such as IRAS and Spitzer. Its success is fueling the anticipation of future infrared missions that will continue to expand our understanding of the universe.

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Solar Activity Brings NASA’s NEOWISE 10-Year Mission to a Close

Posted on December 20, 2023 by Igor Mitreski

NEOWISE Mission

This artist’s concept shows the Wide Field Infrared Surveyor (WISE) spacecraft orbiting the Earth. The NEOWISE mission will find and characterize asteroids.
Credit: NASA/JPL-California Institute of Technology

Infrared space telescopes searching for asteroids and comets have collected vast amounts of observations, but are now at the mercy of the sun, which is accelerating their demise.

NASA’s Neowise It’s been a busy 10 years. Since its resumed mission began on December 13, 2013, the space telescope has discovered once-in-a-lifetime comets, observed more than 3,000 near-Earth objects, strengthened international planetary defense strategies, and It has helped other NASA missions rendezvous with distant space. asteroid. This is just a partial list of achievements.

But all good things must come to an end. Solar activity is pushing NEOWISE (short for Near-Earth Object Wide-field Infrared Survey Explorer) out of orbit. By early 2025, the spacecraft is expected to have fallen far enough into Earth’s atmosphere that it will become unusable. Eventually it will re-enter the atmosphere and burn up completely.

Approximately every 11 years, the Sun goes through a cycle of increasing activity, peaking during a period called solar maximum. Explosive events such as solar flares and coronal mass ejections will become more frequent, heating the Earth’s atmosphere and causing it to expand. Atmospheric gases increase the drag on satellites as they orbit the Earth, slowing them down. Now, as the Sun approaches its next maximum, NEOWISE will no longer be able to maintain its orbit above the atmosphere.

Comet C/2020 F3 NEOWISE is a composite of several heat-sensitive infrared images taken by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission on March 27, 2020. Appears as a blurry red dot.
Credit: NASA/JPL-California Institute of Technology

“The mission has been planning for this day for a long time. After several years of lull, the sun is waking up again,” said NEOWISE co-principal investigator and researcher at the California Institute of Technology in Pasadena, California. said Joseph Masiello, a scientist with the organization IPAC. “With us at the mercy of solar activity and no means of staying in orbit, NEOWISE is now slowly spiraling back to Earth.”

wise beginnings

The past decade has meant a second life for the spacecraft. Managed by NASA’s Jet Propulsion Laboratory in Southern California, NEOWISE is part of another mission launched in 2009, the Wide-Field Infrared Surveyor (wise). Data from WISE and NEOWISE is used to study distant galaxies, cold stars, and explosions. white dwarf Stars, gas-emitting comets, near-Earth asteroids, etc.

In 2010, WISE achieved its scientific goal of conducting an all-sky infrared survey with far greater sensitivity than previous surveys. WISE mission also discovered tens of millions of actively feeding supermassive black holes across the sky.through disc detective In this project, citizen scientists used WISE data to find circumstellar disks, which are clouds of gas, dust, and debris that rotate around stars.

Infrared wavelengths, which are invisible to the naked eye, are emitted by warm objects. To ensure that the heat generated by WISE itself does not interfere with observations in infrared wavelengths, the spacecraft relied on cryogenic coolant. NASA put the spacecraft into hibernation in February 2011 after it ran out of coolant and WISE mapped the sky twice.

Without the coolant, space telescopes could no longer observe the coldest objects in the universe, but they could still see near-Earth asteroids and comets heated by the sun. So NASA restarted the spacecraft in 2013 with a more specialized role in mind. The goal is to support planetary defense efforts by investigating and studying objects that may wander into Earth’s orbit and pose a potential collision hazard.

In addition to relying on missions to explore these objects, astronomers use that data to understand the object’s size, albedo, or how much sunlight its surface reflects, and the composition of its structure. You can also collect clues about the minerals and rocks you find.

“NEOWISE demonstrates the importance of deploying infrared space exploration telescopes as part of NASA’s planetary defense strategy while also monitoring objects in our solar system and beyond,” said lead researcher Amy, from the University of Arizona in Tucson. Mainzer said. .

Mainzer also leads NASA’s future plans. NEO surveyor, built on the NEOWISE tradition. The next generation of infrared space telescopes will search for celestial objects close to the Earth, such as dark asteroids and comets that do not reflect much visible light, or objects that approach the Earth from the direction of the sun. Sun. The launch is scheduled for 2027. JPL-Managed missions will also explore objects known as Earth Trojans – asteroids that lead or follow our planet’s orbit. The first one is wise discovery In 2011.

Comet NEOWISE and beyond

Since becoming NEOWISE, the mission has scanned the entire sky more than 20 times and made 1.45 million infrared measurements on more than 44,000 Solar System objects. This includes over 3,000 near-Earth objects, 215 of which were discovered by his NEOWISE. Data from the mission helped refine the orbits of these objects, while also measuring their sizes.

Its strength is in revealing the characteristics of asteroids near the Earth. In 2021, NEOWISE became a key component of an international planetary defense exercise focused on the dangerous asteroid Apophis.

The mission also discovered 25 comets, including long-period comet C/2020 F3 (NEOWISE). The comet was a dazzling object visible in the Northern Hemisphere for several weeks in 2020, making it the first comet to be visible to the naked eye since 2007, when Comet McNaught was primarily visible in the Southern Hemisphere.

Future researchers will use WISE in 2010, long after observations were made to characterize the asteroid Dinkinesh, in support of NASA’s Lucy mission before the October 2023 encounter. Just as we used the data, we will continue to rely on the vast archive of NEOWISE observations to make new discoveries.

“This is a bittersweet moment. We are sad to see this pioneering mission come to an end, but we know there are even more treasures hidden in the survey data,” Masiello said. “NEOWISE has a vast archive that covers a very long period of time and will inevitably advance the science of the infrared universe long after the spacecraft leaves.”

Mission details
NEOWISE and NEO Surveyor are part of NASA’s Planetary Defense Coordination Office (PDCO) at NASA Headquarters in Washington. The NASA Authorization Act of 2005 directs NASA to discover and characterize at least 90% of near-Earth objects larger than 140 meters (460 feet) in diameter that come within 30 million miles (48 million kilometers) of Earth’s orbit. did. An object of this size could cause significant damage to the region, and it would be even worse if it crashed into Earth.
JPL manages and operates PDCO’s NEOWISE mission within the Science Mission Directorate. The Astrodynamics Laboratory in Logan, Utah, built the scientific instrument. Ball Aerospace & Technologies of Boulder, Colorado, built the spacecraft. Scientific data processing will take place at IPAC at the California Institute of Technology. Caltech manages JPL for NASA.

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NASA’s Laser Technology Beams Ultra-HD Cat Video from 19 Million Miles Away

Posted on December 19, 2023 by Igor Mitreski

NASA has made a significant advancement in deep space communications by successfully transmitting high-definition video from 19 million miles away. This breakthrough paves the way for advanced data transmission in space exploration. The video was transmitted from a cat named Taters and marked a historic milestone for NASA’s laser communications demonstration.

The Deep Space Optical Communications Experiment on December 11 transmitted ultra-high-resolution streaming video from a record-setting distance of 19 million miles. This milestone is part of a NASA technology demonstration aimed at streaming extremely high-bandwidth video and other data from deep space to enable future crewed missions beyond Earth orbit.

NASA Deputy Administrator Pam Melroy stated, “This achievement confirms our commitment to advancing optical communications as a key element in meeting future data transmission needs. Increasing bandwidth is essential to achieving future exploration and science goals, and we look forward to continued advances in this technology and the transformation of how we communicate during future interplanetary missions.”

The 15-second test video was transmitted using a Flight Laser Transceiver at a maximum bit rate of 267 Mbps and took 101 seconds to reach Earth. The instrument transmitted a coded near-infrared laser to the Hale Telescope at the Palomar Observatory, where it was downloaded. Each frame of the video was transmitted “live” to NASA’s Jet Propulsion Laboratory in real time.

The video was sent via a Deep Space Optical Communications (DSOC) technology demonstration flight laser transceiver that was installed at NASA’s Jet Propulsion Center in April 2021 and later integrated with NASA’s Psyche spacecraft. The technology aims to transmit data from deep space 10 to 100 times faster than the most advanced radio frequency systems used in today’s deep space missions.

The ultra-high-definition video features a cat named Taters and was transmitted from deep space on December 11, 2023. The video was part of a technology demonstration known as Deep Space Optical Communications (DSOC) as the Psyche spacecraft heads towards the asteroid belt between Mars and Jupiter.

The system has demonstrated faster data downlink speeds and increased pointing accuracy during weekly checkouts. The project demonstrated downlink bit rates of 62.5 Mbps, 100 Mbps, and 267 Mbps, comparable to broadband Internet download speeds. The team was able to download a total of 1.3 terabits of data during that time, marking a significant technological achievement.

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Dragonfly: NASA’s Drone Mission Set for 2028

Posted on December 18, 2023 by Igor Mitreski

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Dragonfly Mission

An artist’s impression of a dragonfly flying over the dunes of Saturn’s moon Titan. NASA has cleared the mission team to proceed with development for a July 2028 launch.Credit: NASA/Johns Hopkins APL/Steve Gribben

The Dragonfly mission is moving toward building nuclear-powered drones. SaturnThe satellite Titan is aiming to be launched in 2028. The mission, which will involve extensive collaboration and technological advances, aims to investigate Titan’s organic matter and its potential links to life.

NASA’s Dragonfly mission team is moving forward with the next stage of development of an innovative car-sized nuclear-powered drone that plans to fly and land over the organic-rich sands of Saturn’s large moon Titan.

NASA has cleared Dragonfly to proceed with design and manufacturing work on its final mission, known as Phase C. The launch preparation date was revised to July 2028.

Artist’s impression of a dragonfly on the surface of Titan. Credit: NASA/Johns Hopkins APL

Overcome challenges and prepare for Titan: “The Dragonfly team successfully overcame many technical and programmatic challenges in this bold attempt to collect new science on Titan,” said Nicola Fox, associate administrator for NASA’s Science Mission Directorate in Washington.

Dragonfly, NASA’s only mission to the surface of another oceanic world, is designed to probe the complex chemistry that is the precursor to life. It will be equipped with cameras, sensors and samplers to survey the area. The water froze on the surface of the ice.

Artist’s impression of a dragonfly flying over Titan. Credit: Johns Hopkins University/APL

Teamwork and technical milestones: “Dragonfly is a very bold experiment that has never been done before,” said Elizabeth “Zibi” Turtle, Dragonfly principal investigator at APL.

Saturn’s largest satellite that will collect data in 2028. Credit: Johns Hopkins Applied Physics Laboratory

Collaborative initiatives and future expectations: “The dedication of the Dragonfly team was nothing short of heroic,” said Bobby Brown, APL Director of Space Exploration.

APL manages NASA’s Dragonfly mission. The team includes key partners from NASA’s Goddard Space Flight Center in Greenbelt, Maryland; Lockheed Martin Space in Littleton, Colorado; Sikorsky, Lockheed Martin Corporation. NASA’s Ames Research Center in Silicon Valley, California. NASA’s Langley Research Center in Hampton, Virginia. Pennsylvania State University in State College, Pennsylvania. Marine Space Science Systems (San Diego, California); Honeybee Robotics, Pasadena, California; NASA’s Jet Propulsion Laboratory in Southern California. French Space Agency (CNES) in Paris. German Aerospace Center (DLR) in Cologne, Germany. and Japan Aerospace Exploration Agency (JAXA) in Tokyo.

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