The space of night is infinite,
The blackness and emptiness
Crossed only by thin bright fences
Of logic

— Kenneth Rexroth
"Theory of Numbers"

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Mariner 7 Goes to Mars

NASA - Breaking News - Thu, 03/28/2024 - 12:52pm
NASA

55 years ago, on March 27, 1969, an Atlas-Centaur rocket launched from NASA’s Kennedy Space Center in Florida, sending Mariner 7 on its way to study Mars. Mariner 7 was the second Mars probe; Mariner 6 launched Feb. 24, 1969, to investigate Mars’ equator. Mariner 7 made a close flyby of Mars just five days after Mariner 6. Scientists were able to instruct it to take additional pictures of the south pole, which had piqued their interest during Mariner 6’s flyby.

The Mariner program launched 10 missions to explore Mercury, Venus, and Mars through flybys or orbits. These missions proved that interplanetary exploration was workable with small, low-cost spacecraft, laying the groundwork for all the deep space exploration missions that followed.

Image Credit: NASA

Categories: NASA

NASA, Partners Select Universities for CubeSat Summer Program

NASA - Breaking News - Thu, 03/28/2024 - 12:43pm
College students attend the 2023 Mission Concept kickoff event at Kennedy Space Center in Florida in May 2023. At the event students work with officials from NASA and branches of the U.S. military to learn more about creating CubeSat mission launch proposals.NASA EDGE

Eight university teams have been selected to work with NASA and the U.S. military to improve their small satellite proposals, ultimately increasing the possibility of flying their technology in space, and potentially launching their own careers in the space industry.

NASA’s CSLI (CubeSat Launch Initiative) is partnering with the U.S. Air Force and U.S. Space Force for the 2024 Mission Concept Program. Running from May through August, the program will provide students with systems engineering training for spacecraft development. The partnership aims to prepare students to work in the space industry while simultaneously enhancing small satellite expertise among faculty at U.S. universities.

A total of 34 universities applied for the 2024 session. A mix of NASA, Air Force, and contractor personnel reviewed the proposals, selecting universities based on the educational impact, university program impact and development, minority outreach and support, and relevance to NASA or the Department of Defense. Three of this year’s awardees – University of Central Florida, Florida Atlantic University, and Tarleton State University – are Minority Serving Institutions. This year’s selections are:

  • University of Central Florida, Orlando
  • University of Mississippi, Oxford
  • Florida Atlantic University, Boca Raton
  • University of North Dakota, Grand Forks
  • Valparaiso University, Valparaiso, Indiana
  • Northeastern University, Boston
  • West Virginia University, Morgantown
  • Tarleton State University, Stephenville, Texas

The teams will meet at NASA’s Kennedy Space Center in Florida for a four-day kickoff meeting in May, followed by seven weeks at the Air Force’s University Nanosatellite Program facilities in Albuquerque, New Mexico, where three students will serve as interns with the Space Dynamics Laboratory.

During the program, the students will work with small satellite experts for continuous feedback and guidance to help improve university proposals and increase those teams’ potential of being selected to fly to space as part of NASA’s CSLI or the Air Force’s nanosatellite opportunities.

Final presentations will take place in Albuquerque and, although not required, participants are encouraged to attend the Small Satellite Conference in Logan, Utah, in August. Both programs will make final selections for future flights in 2025.

The 2024 Mission Concept Program provides funding for all travel, including kickoff, final event, and in-person reviews, allowing faculty and students to formulate teams without straining university resources.

NASA uses CSLI as one if its ways to attract retain students in science, technology, engineering, and mathematics disciplines. This strengthens NASA’s and the nation’s future workforce. The initiative promotes and develops innovative technology partnerships among NASA, U.S. industry, and other sectors for the benefit of all.

Visit NASA’s CSLI website for more information:

https://go.nasa.gov/3PEP2Q6

Categories: NASA

Someone Just Found SOHO's 5,000th Comet

Universe Today - Thu, 03/28/2024 - 12:33pm

The Solar and Heliospheric Observatory (SOHO) was designed to examine the Sun, but as a side benefit, it has been the most successful comet hunter ever built. Since early in the mission, citizen scientists have been scanning through the telescope’s data, searching for icy objects passing close to the Sun. An astronomy student in Czechia has identified 200 comets in SOHO data since he started in 2009 at the age of 13. He recently spotted the observatory’s 5,000th comet.

“Prior to the launch of the SOHO mission and the Sungrazer Project, there were only a couple dozen sungrazing comets on record – that’s all we knew existed,” said Karl Battams, who is the principal investigator for the Sungrazer Project, the citizen science project that was launched after so many comets started showing up in the data. “The fact that we’ve finally reached this milestone – 5000 comets – is just unbelievable to me.”

SOHO moves around the Sun on the sunward side of Earth, where it enjoys a clear, uninterrupted view of the Sun, by slowly orbiting around Lagrange point L1.  That means it has been observing the Sun 24 hours a day, 365 days a year without interruptions since shortly after it launched in 1995. With this view, SOHO can easily spot the kind of comet that’s known as a sungrazer – so named because of their close approach to the Sun. Many of these comets don’t survive their close pass to the Sun.

Many congratulations to Hanjie Tan (@HonkitTan) for making that 5,000th discovery! Hanjie has been discovering comets with the Sungrazer Project since he was 13yrs old, and is now pursuing for his PhD studying asteroids! pic.twitter.com/wa51ZlVnjm

— Karl Battams (@SungrazerComets) March 27, 2024

Hanjie Tan is the student who discovered the 5,000th comet. Inspired by his many years of searching for comets, Tan is now an astronomy PhD student in Prague, Czechia, studying comets and asteroids. The small comet that he spotted is part of the ‘Marsden group’ of comets, named after the British astronomer Brian Marsden, who first recognized the group based on SOHO observations. Marsden group comets are thought to be pieces shed by the much bigger Comet 96P/Machholz, which SOHO observes as it passes close to the Sun every 5.3 years.

“The Marsden group comets represent only about 1.5% of all SOHO comet discoveries,” said Tan in an ESA press release, “so finding this one as the 5000th SOHO comet felt incredibly fortunate. It’s really exciting to be the first to see comets get bright near the Sun after they’ve been travelling through space for thousands of years.”

Artist’s impression of the SOHO spacecraft studying the Sun. Credit: NASA/ESA.

The SOHO mission has now been operational for almost 30 years. It’s almost been lost twice and is now flying without the use of its gyroscopes, which help it point precisely. Engineers have figured out a way to work around the issue. It’s longevity has not only provided an incredible treasure trove of data about the Sun, but it also has allowed the spacecraft to become the most prolific discoverer of comets in astronomical history.

Related: 22 years of the Sun from SOHO

Launched in 1995, SOHO studies the Sun from its interior to its outer atmosphere, providing unique views and investigating the cause of the solar wind. During the last three decades, SOHO has become the most prolific discoverer of comets in astronomical history.

“A huge congratulations to EVERYONE who has ever contributed to Sungrazer,” Battams said on Twitter. “Hanjie may have found #5000, but it took 24-years of combined volunteer ‘amateur’ scientist efforts to find the other 4,999. This was a team effort, and I’m so thankful to all who have helped!”

The post Someone Just Found SOHO's 5,000th Comet appeared first on Universe Today.

Categories: Astronomy

SpaceX delays launch of 22 Starlink satellites from California

Space.com - Thu, 03/28/2024 - 12:30pm
SpaceX will try again to launch another batch of its Starlink internet satellites after at least a one-day delay.
Categories: Astronomy

Astronomers Only Knew of a Single Binary Cepheid System. Now They Just Found Nine More

Universe Today - Thu, 03/28/2024 - 12:24pm

Measuring the distance to far away objects in space can be tricky. We don’t even know the precise distance to even our closest neighbors in the Universe – the Small and Large Magellanic Clouds. But, we’re starting to get to the tools to measure it. One type of tool is a Cepheid Variable – a type of star that varies its luminosity in a well-defined pattern. However, we don’t know much about their physical properties, making utilizing them as distance markers harder. Finding their physical properties would be easier if there were any Cepheid binaries that we could study, but astronomers have only found one pair so far. Until a recent paper from researchers from Europe, the US, and Chile shows measurements of 9 additional binary Cepheid systems – enough that we can start understanding the statistics of these useful distance markers.

Like traditional stars, binary Cepheid systems result when two stars orbit around each other. In this case, both of those stars must be Cepheids – meaning they are massive compared to our Sun and much brighter. In addition, their luminosity must vary in a repeatable pattern so that we can track it consistently.

All of those features can vary a lot if two stars change in luminosity but at different rates and phases around each other. It’s difficult to parse out which star is waxing, which is waning, and which direction they are moving in, both compared to us and each other. Long periods of observation are required to fix some of those variables, and that is precisely what the new paper describes.

The researchers looked at nine sets of Cepheids that were believed to be binary systems but hadn’t yet been confirmed due to the difficulty of separating the two stars from each other. They pulled data from the Optical Gravitational Lensing Experiment (OGLE) database, a variable star observation project run by the University of Warsaw for over 30 years. In so doing, they could confirm, for the first time, that each of these suspected binaries contained two separate stars.

Those nine binary systems were located in the Small and Large Magellanic Cloud and the Milky Way. One located in the Milky Way is by far the closest, at only 11 kiloparsecs (about 3000 light-years) away. The researchers also had good luck because of the length of orbital periods of the binaries they studied – most were over five years, and a shorter observational data set might not have caught them. 

Understanding how these systems exist and where they are is just the first step. Using them for more helpful science is the next. The most obvious way to do so is to increase our understanding of Cepheids. Despite being one of the most commonly used distance markers in the Universe, we know surprisingly little about how they form, what they’re made of, or their life cycle. Closely studying a binary system, where the stars interact, could help shed light (figuratively in this sense) on some of those properties.

Calibrated Period-luminosity Relationship for Cepheids
Credit – NASA

As the authors point out in their paper, this is part of a long-term ongoing project – they were also part of the team that confirmed the original Cepheid binary system back in 2014. OGLE continues to collect more data, as are other sky surveys, and there are likely more Cepheid binaries out there. Every new discovery will help improve our statistical understanding of these critical distance markers – we just need to take the time to find them first.

Learn More:
Pilecki et al. – Cepheids with giant companions II. – Spectroscopic confirmation of nine new double-lined binary systems composed of two Cepheids
UT – What are Cepheid Variables?
UT – Polaris is the Closest, Brightest Cepheid Variable. Very Recently, Something Changed.
UT – Astronomers Rule Out One Explanation for the Hubble Tension

Lead Image:
RS Puppis , one of the brightest known Cepheid variable stars in the Milky Way galaxy
Credit – NASA, ESA, and the Hubble Heritage Team

The post Astronomers Only Knew of a Single Binary Cepheid System. Now They Just Found Nine More appeared first on Universe Today.

Categories: Astronomy

Japan’s SLIM moon lander surprisingly survived a second lunar night

New Scientist Space - Space Headlines - Thu, 03/28/2024 - 12:13pm
The Smart Lander for Investigating Moon spacecraft has sent back images after surviving its second lunar night – generally these periods are so cold they destroy spacecraft electronics
Categories: Astronomy

Japan’s SLIM moon lander surprisingly survived a second lunar night

New Scientist Space - Cosmology - Thu, 03/28/2024 - 12:13pm
The Smart Lander for Investigating Moon spacecraft has sent back images after surviving its second lunar night – generally these periods are so cold they destroy spacecraft electronics
Categories: Astronomy

Don’t Make Me Wait for April 8!

NASA - Breaking News - Thu, 03/28/2024 - 12:13pm

4 min read

Don’t Make Me Wait for April 8!

Can’t wait to see the Moon block the Sun on April 8? Neither can we. But we have good news – if you want to see an incredible cosmic alignment, you can catch one right now! Exoplanets, asteroids, and other objects regularly pass in front of stars and block their light. Observing these events is easier than you might think – and it can be a fantastic way to contribute to NASA science.

The Baily’s Beads – the bright spots of light on the lower left of the Moon – seen here are the last rays of sunlight that shone through the low spots or valleys on the Moon’s rugged surface as the Moon made its final move over the Sun during the total solar eclipse on Aug. 21, 2017, above Madras, Oregon. Baily’s Beads will appear on the opposite side of the Moon as it begins to move away from the Sun following totality. NASA/Aubrey Gemignani

There are three main kinds of cosmic alignments that temporarily block our view of a star. Each one can help us pick out fine details about astronomical objects that can’t be observed any other way.

Eclipse – when one object blocks another that’s apparently similar in size.

Occultation – when a relatively big object completely blocks an apparently smaller object.

Transit – when an apparently small object passes in front of a larger star, blocking some but not all of its light.

You’ll notice that we use the word “apparently” in each of those definitions. That’s because what matters is how big the object looks from our perspective, not how big it actually is.

Now let’s look at some science projects you can get involved in that observe these phenomena.

Eclipses help scientists see faint objects next to bright objects. Just like you might raise your hand to block light from your car’s headlight while you search the ground for your keys, eclipses block the overpowering light from a star so objects around it can be viewed more easily. This is what the Eclipse Megamovie project, the Dynamic Eclipse Broadcast Initiative, and Citizen CATE 2024 are doing: taking advantage of the Moon blocking the fierce sunlight so they can see what’s happening right around the Sun. These projects invite you to help them use this method to study the Sun’s faint corona. Eclipses and occultations can also tell us about the relative sizes and shapes of objects. This is how Sunsketcher will harness the April 8 eclipse. With your help, they will use our precise knowledge of the size and topography of the Moon to vastly improve estimates of the shape of the Sun. At the very beginning and end of totality, viewers will see Baily’s Beads – bright spots of light around the Moon’s edge where rays of sunlight slip through the valleys between the mountains on the Moon’s surface just before and after totality. The SunSketcher app will capture images of these beads along with precise time and location data of each observation. Following the eclipse, the SunSketcher team will use the collected observations to calculate the shape of the Sun.

When a planet passes directly between a star and its observer – what astronomers call a transit – the planet dims the star’s light by a measurable amount. The graph in the lower left shows a real time visualization of the strength of the light signal from the star.
NASA

When an object transits – or passes in front of – a star, the star’s light dims. Measuring changes in starlight to search for these transits has revealed thousands of exoplanets (planets orbiting other stars) in recent years. You can join the search today! Three NASA citizen science projects are focused on investigating exoplanets using transits.

  • Planet Hunters TESS invites everyone to look for traces of transiting planets in the changing light of distant stars. The most promising of these signals indicate “exoplanet candidates” to be confirmed through additional observations. This project, hosted on the Zooniverse platform, can be done on a smartphone or a computer.
  • Exoplanet Watch is a community of people who use their own telescopes or a shared community robotic telescope to observe exoplanet candidates to better predict the next time the objects will transit. This project requires an internet-connected computer.
  • UNITE, like Exoplanet Watch, is a community of folks using their telescopes to observe exoplanet candidates. This community uses Unistellar telescopes, which operate on a standard, user-friendly system. The UNITE and Exoplanet Watch teams often share data and collaborate!

Whichever events you observe, or whichever projects you choose to contribute to, we’re sure you’ll find yourself marveling at our presence on this wonderful planet in this mysterious universe. You don’t have to wait until April 8!

by Sarah Kirn and Marc J. Kuchner
NASA Citizen Science

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Mar 28, 2024

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Lego NASA Mars Rover Perseverance review

Space.com - Thu, 03/28/2024 - 12:00pm
Curious about NASA’s other famous rover? Then check out our Lego NASA Mars Rover Perseverance review.
Categories: Astronomy

Could bone marrow transplants transmit Alzheimer's disease?

New Scientist Space - Space Headlines - Thu, 03/28/2024 - 11:00am
The mainstream view is that Alzheimer's starts in the brain, but researchers were able to transfer the condition in mice by injections of bone marrow
Categories: Astronomy

Could bone marrow transplants transmit Alzheimer's disease?

New Scientist Space - Cosmology - Thu, 03/28/2024 - 11:00am
The mainstream view is that Alzheimer's starts in the brain, but researchers were able to transfer the condition in mice by injections of bone marrow
Categories: Astronomy

SunChips will sell exclusive total solar eclipse flavors only during totality on April 8

Space.com - Thu, 03/28/2024 - 11:00am
SunChips is releasing a special solar eclipse-themed flavor during the April 8 solar eclipse, but the chips will only be available while totality passes through the United States.
Categories: Astronomy

Three-Year Study of Young Stars with NASA’s Hubble Enters New Chapter

NASA - Breaking News - Thu, 03/28/2024 - 10:02am

4 min read

Three-Year Study of Young Stars with NASA’s Hubble Enters New Chapter

In the largest and one of the most ambitious Hubble Space Telescope programs ever executed, a team of scientists and engineers collected information on almost 500 stars over a three-year period. This effort offers new insights into the stars’ formation, evolution, and impact on their surroundings. 

This comprehensive survey, called ULLYSES (Ultraviolet Legacy Library of Young Stars as Essential Standards), was completed in December 2023, and provides a rich spectroscopic dataset obtained in ultraviolet light that astronomers will be mining for decades to come. Because ultraviolet light can only be observed from space, Hubble is the only active telescope that can accomplish this research. 

The ULLYSES program studied two types of young stars: super-hot, massive, blue stars and cooler, redder, less massive stars than our Sun. The top panel is a Hubble Space Telescope image of a star-forming region containing massive, young, blue stars in 30 Doradus, the Tarantula Nebula. Located within the Large Magellanic Cloud, this is one of the regions observed by ULLYSES. The bottom panel shows an artist’s concept of a cooler, redder, young star that is less massive than our Sun. This type of star is still gathering material from its surrounding, planet-forming disk. NASA, ESA, STScI, Francesco Paresce (INAF-IASF Bologna), Robert O’Connell (UVA), SOC-WFC3, ESO
Download this image

“I believe the ULLYSES project will be transformative, impacting overall astrophysics – from exoplanets, to the effects of massive stars on galaxy evolution, to understanding the earliest stages of the evolving universe,” said Julia Roman-Duval, Implementation Team Lead for ULLYSES at the Space Telescope Science Institute (STScI) in Baltimore, Maryland. “Aside from the specific goals of the program, the stellar data can also be used in fields of astrophysics in ways we can’t yet imagine.”

The ULLYSES team studied 220 stars, then combined those observations with information from the Hubble archive on 275 additional stars. The program also included data from some of the world’s largest, most powerful ground-based telescopes and X-ray space telescopes. The ULLYSES dataset is made up of stellar spectra, which carry information about each star’s temperature, chemical composition, and rotation. 

One type of stars studied under ULLYSES is super-hot, massive, blue stars. They are a million times brighter than the Sun and glow fiercely in ultraviolet light that can easily be detected by Hubble. Their spectra include key diagnostics of the speed of their powerful winds. The winds drive galaxy evolution and seed galaxies with the elements needed for life. Those elements are cooked up inside the stars’ nuclear fusion ovens and then injected into space as a star dies. ULLYSES targeted blue stars in nearby galaxies that are deficient in elements heavier than helium and hydrogen. This type of galaxy was common in the very early universe. “ULLYSES observations are a stepping stone to understanding those first stars and their winds in the universe, and how they impact the evolution of their young host galaxy,” said Roman-Duval.  

The other star category in the ULLYSES program is young stars less massive than our Sun. Though cooler and redder than our Sun, in their formative years they unleash a torrent of high-energy radiation, including blasts of ultraviolet light and X-rays. Because they are still growing, they are gathering material from their surrounding planet-forming disks of dust and gas. The Hubble spectra include key diagnostics of the process by which they acquire their mass, including how much energy this process releases into the surrounding planet-forming disk and nearby environment. The blistering ultraviolet light from young stars affects the evolution of these disks as they form planets, as well as the chances of habitability for newborn planets. The target stars are located in nearby star-forming regions in our Milky Way galaxy.

The ULLYSES concept was designed by a committee of experts with the goal of using Hubble to provide a legacy set of stellar observations. “ULLYSES was originally conceived as an observing program utilizing Hubble’s sensitive spectrographs. However, the program was tremendously enhanced by community-led coordinated and ancillary observations with other ground- and space-based observatories,” said Roman-Duval. “Such broad coverage allows astronomers to investigate the lives of stars in unprecedented detail and paint a more comprehensive picture of the properties of these stars and how they impact their environment.”

To that end, STScI hosted a ULLYSES workshop March 11–14 to celebrate the beginning of a new era of research on young stars. The goal was to allow members of the astronomical community to collaborate on the data, so that they could gain momentum in the ongoing analyses, or kickstart new ideas for analysis. The workshop was one important step in exploiting this legacy spectral library to its fullest potential, fulfilling the promise of ULLYSES.

The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, Colorado, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, Maryland, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.

Media Contacts:

Claire Andreoli
NASA’s Goddard Space Flight CenterGreenbelt, MD
claire.andreoli@nasa.gov

Ann Jenkins / Ray Villard
Space Telescope Science Institute, Baltimore, MD

Science Contact:

Julia Roman-Duval
Space Telescope Science Institute, Baltimore, MD

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Mar 28, 2024

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Boeing files lawsuit against Virgin Galactic over development of new mothership aircraft

Space.com - Thu, 03/28/2024 - 10:00am
Boeing and Aurora Flight Sciences are suing Virgin Galactic for unpaid work and trade secrets related to a new mothership aircraft for Virgin Galactic’s next-generation space planes.
Categories: Astronomy

NASA Astronaut Loral O’Hara, Expedition 70 Science Highlights

NASA - Breaking News - Thu, 03/28/2024 - 10:00am

4 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater)

NASA astronaut Loral O’Hara is returning home after six months aboard the International Space Station. During her time on the orbiting laboratory, O’Hara contributed to dozens of scientific investigations and technology demonstrations to prepare for future space exploration missions and generate innovations and benefits for humanity on Earth.

Here is a look at some of the scientific activities O’Hara conducted during her mission:

Biking for Better Health NASA

NASA astronaut Loral O’Hara is among the first astronauts participating in the CIPHER (Complement of Integrated Protocols for Human Exploration Research on Varying Mission Durations) investigation. CIPHER examines physiological and psychological changes that humans undergo during spaceflight. One of the protocols measures changes in cardiorespiratory and muscle fitness during exercise. Collecting data from crew members on missions of different durations supports development of ways to protect crew member health on a long mission such as a trip to Mars.

Tending the Space Garden NASA

NASA astronaut Loral O’Hara works with tomato plants grown for Plant Habitat-06, an investigation using genetic analysis to examine how spaceflight affects plant immune function and production. Results could support development of crops to provide food and other services on future space missions. On Earth, pathogens are responsible for up to 40% of global crop loss, and insight into the interaction between gravity and how plants respond to pathogens could inform strategies to enhance crop growth and productivity.

Reading Radiation Exposure NASA

Crew members pose with active dosimeters: left to right, Andreas Mogensen of ESA (European Space Agency), NASA astronauts Loral O’Hara and Jasmin Moghbeli, and Satoshi Furukawa of JAXA (Japan Aerospace Exploration Agency). These devices monitor individual radiation exposure for the International Space Station Internal Radiation Monitoring investigation, which aims to keep ionizing radiation exposure at levels acceptable for maintaining crew member health and safety and ensuring the success of their missions.

Understanding Bone Loss NASA

Bone loss is a major problem of aging on Earth and a serious health concern for astronauts. MABL-A (Microgravity Associated Bone Loss-A) examines the effect of microgravity on bone marrow mesenchymal stem cells, which produce bone-forming cells and play a role in making and repairing skeletal tissues. NASA astronaut Loral O’Hara works inside the Life Science Glovebox for the investigation, which could improve understanding of the mechanisms behind bone loss and support development of ways to better protect crew members and people on Earth from its effects.

Bringing in the Cold NASA

NASA astronauts Jasmin Moghbeli and Loral O’Hara pose in front of the Cold Atom Lab. The lab produces clouds of atoms so cold that they have almost no motion, allowing researchers to observe their fundamental behaviors and quantum characteristics. Physicists have long pursued ever colder temperatures, and microgravity may make it possible to achieve those temperatures for longer periods of time. The Cold Atom Lab research could facilitate the development of new quantum technology.

Taking Out the Heat NASA

NASA astronaut Loral O’Hara works on MaRVIn-PCIM (Microgravity Research for Versatile Investigations-Phase Change in Mixtures), which examines the dynamics of liquid and vapor flow inside a wickless heat pipe. These devices, used to dissipate heat to cool satellites and electronics, operate differently in microgravity than on Earth. Results could support development of lighter and more efficient cooling devices for future space exploration.

Preparing for a Walk in Space NASA

NASA astronaut Loral O’Hara tests components of her spacesuit in preparation for a spacewalk. O’Hara and NASA astronaut Jasmin Moghbeli conducted a spacewalk together on Nov 1, 2023. It took the duo six hours and 42 minutes to complete tasks that included working on hardware that enables the space station’s solar arrays to track the Sun, helping to provide power for scientific operations on the orbiting lab.

Creating Cardiac Tissues NASA

NASA astronaut Loral O’Hara works on the Redwire Cardiac Bioprinting Investigation (BFF Cardiac), which studies bio-printed cardiac tissues. Higher-quality 3D tissues can be printed in microgravity, where density layers, settling, and other effects of gravity are absent. This technology supports development of ways to print food and medicine on demand on future missions, reducing mass and cost at launch and improving crew health and safety. Results also could advance technologies to create replacement organs and tissues for transplant on Earth, helping to alleviate shortages.

Melissa Gaskill
International Space Station Research Communications Team
Johnson Space Center

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Mathematicians are bitterly divided over a controversial proof

New Scientist Space - Space Headlines - Thu, 03/28/2024 - 9:00am
An attempt to settle a decade-long argument over a controversial proof by mathematician Shinichi Mochizuki has seen a war of words on both sides, with Mochizuki dubbing the latest effort as akin to a "hallucination" produced by ChatGPT
Categories: Astronomy

Mathematicians are bitterly divided over a controversial proof

New Scientist Space - Cosmology - Thu, 03/28/2024 - 9:00am
An attempt to settle a decade-long argument over a controversial proof by mathematician Shinichi Mochizuki has seen a war of words on both sides, with Mochizuki dubbing the latest effort as akin to a "hallucination" produced by ChatGPT
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