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NASA

NASA Chooses Blue Origin's Rocket To Launch Smallsat Mission To Mars (spacenews.com) 71

NASA selected Blue Origin in February to launch the Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) mission, a pair of smallsats that will study the interaction of the solar wind with the magnetosphere of Mars. The space agency now expects the mission will be on the first launch of Blue Origin's New Glenn launch vehicle next year. SpaceNews reports: Neither Blue Origin nor NASA disclosed exactly where in the manifest of New Glenn launches ESCAPADE would take place. "It will be an early New Glenn mission and we're going to be ready," one Blue Origin executive, Ariane Cornell, said at the Satellite 2023 conference in March. At a Nov. 20 meeting of the NASA Advisory Council's human exploration and operations committee, Bradley Smith, director of NASA's Launch Services Office, said he was "incredibly excited" about the ESCAPADE launch, which he said was scheduled for about one year. His charts, though, and past presentations, listed an August 2024 launch for ESCAPADE.

"It's an incredibly ambitious first launch for New Glenn and we really appreciate the partnership," he said. Later in the committee meeting, he confirmed that NASA expected ESCAPADE to be on the inaugural New Glenn launch. "We will very likely be the very first launch of New Glenn," he said. That is acceptable, Smith said, since ESCAPADE is what NASA characterizes as a "class D" mission with a higher tolerance for risk. "We're willing to take a little bit of risk with a price tag and a mission assurance model that reflects that risk."

Besides the inherent technical risks in the first launch of a new rocket, there are also schedule risks. New Glenn development is years behind the original schedule Blue Origin put forward. The company has not provided recent updates about progress towards a first launch of the rocket, although Jarrett Jones, senior vice president for New Glenn at Blue Origin, said at World Satellite Business Week in September that the first flight vehicle would arrive at a Florida integration facility by the end of the year, with the company planning "multiple" launches of New Glenn in 2024.

Space

Deep Space Astronauts May Be Prone To Erectile Dysfunction, Study Finds (theguardian.com) 85

As if homesickness, wasting muscles, thinner bones, an elevated cancer risk, the inescapable company of overachievers and the prospect of death in the endless vacuum of space were not enough to contend with, male astronauts may return from deep space prone to erectile dysfunction, scientists say. From a report: In what is claimed to be the first study to assess the impact of galactic radiation and weightlessness on male sexual health, Nasa-funded researchers found that galactic cosmic rays, and to a lesser extent microgravity, can impair the function of erectile tissues, with effects lasting potentially for decades. Raising their concerns in a report on Wednesday, the US researchers said they had identified "a new health risk to consider with deep space exploration." They called for the sexual health of astronauts to be closely monitored on their return from future deep space missions, noting that certain antioxidants may help to counteract the ill-effects by blocking harmful biological processes.

"While the negative impacts of galactic cosmic radiation were long-lasting, functional improvements induced by acutely targeting the redox and nitric oxide pathways in the tissues suggest that the erectile dysfunction may be treatable," said Dr Justin La Favor, an expert in neurovascular dysfunction at Florida State University and a senior author on the study. The warning comes amid a renewed focus on deep space missions, with Nasa and other major space agencies preparing for long-term expeditions to the moon and more ambitious voyages to Mars. Nasa's Artemis programme aspires to send astronauts to the moon as early as next year, with crewed missions to Mars tentatively lined up for as early as 2040.

Space

Earth Receives Laser-Beamed Message From 10 Million Miles Away (space.com) 31

Rahul Rao reports via Space.com: On Nov. 14, NASA picked up a laser signal fired from an instrument that launched with the Psyche spacecraft, which is currently more than 10 million miles (16 million kilometers) from Earth and heading toward a mysterious metal asteroid. (The spacecraft is at more than 40 times the average distance of Earth's moon, and still voyaging afar.) The moment marked the first successful test of NASA's Deep Space Optical Communications (DSOC) system, a next-generation comms link that sends information not by radio waves but instead by laser light. It's part of a series of tests NASA is doing to speed up communications in deep space, on different missions. "Achieving first light is a tremendous achievement. The ground systems successfully detected the deep space laser photons from DSOC," Abi Biswas, the system's project technologist at NASA's Jet Propulsion Laboratory (JPL) in Southern California, said in an agency statement.

"And we were also able to send some data, meaning we were able to exchange 'bits of light' from and to deep space," Biswas added.
Space

SpaceX's Starship Reaches Outer Space Before Intentional Detonation (cnn.com) 125

CNN reports SpaceX made a second attempt to successfully launch Starship, the most powerful rocket ever constructed. The uncrewed rocket took off just after 7 a.m. CT (8 a.m. ET). The rocket took off as intended, making it roughly 8 minutes into flight before SpaceX confirmed it had to intentionally explode the Starship spacecraft as it flew over the ocean...

This mission comes after months of back-and-forth with federal regulators as SpaceX has awaited a launch license. The company is also grappling with pushback from environmentalists...

After separating from the Super Heavy rocket booster, the Starship spacecraft soared to an altitude of approximately 93 miles (150 kilometers) before SpaceX lost contact, according to a statement issued by the company. For context, the U.S. government considers 50 miles (80 kilometers) above Earth's surface the edge of outer space...

SpaceX is OK with rockets exploding in the early stages of development. That's because the company uses a completely different approach to rocket design than, say, NASA. The space agency focuses on building one rocket and strenuously designing and testing it on the ground before its first flight — taking years but all but guaranteeing success on the first launch. SpaceX, however, rapidly builds new prototypes and is willing to test them to their breaking point because there's usually a spare nearby. During a drive by the company's facilities on Friday — four Starship spacecraft and at least two Super Heavy boosters could be seen from public roadways.

CNN reminds readers that "so far in 2023 alone, the Falcon 9 has launched more than 70 spaceflights...

"Elon Musk described Starship as the vehicle that underpins SpaceX's founding purpose: sending humans to Mars for the first time. NASA has its own plans for the rocket."
Data Storage

Scientists Use Raspberry Pi Tech To Protect NASA Telescope Data (theregister.com) 38

Richard Speed reports via The Register: Scientists have revealed how data from a NASA telescope was secured thanks to creative thinking and a batch of Raspberry Pi computers. The telescope was the Super Pressure Balloon Imaging Telescope (SuperBIT), launched on April 16, 2023, from Wanaka Airport in New Zealand. The telescope was raised to approximately 33km in altitude by NASA's 532,000-cubic-meter (18.8-million-cubic-foot) balloon and, above circa 99.5 percent of the Earth's atmosphere, it spent over a month circumnavigating the globe and acquiring observations of astronomical objects. The plan had been for the payload to transmit its data to the ground using SpaceX's Starlink constellation and the US Tracking and Data Relay Satellite System (TDRSS). However, the Starlink connection went down soon after launch, on May 1, and the TDRSS connection became unstable on May 24. The boffins decided to attempt a landing on May 25 due to poor communications and concerns the balloon might be pulled away from further land crossings by weather.

The telescope itself was destroyed during the landing; it was dragged along the ground for 3km by a parachute that failed to detach, leaving a trail of debris in its wake. Miraculously, though, SuperBIT's solid-state drive was recovered intact. However, other than as a reference, its data was not needed thanks to the inclusion of Raspberry Pi-powered hardware in the form of four Data Recovery System (DRS) capsules. Each capsule included a Raspberry Pi 3B and 5TB of solid-state storage. A parachute, a Global Navigation Satellite System (GNSS) receiver, and an Iridium short-burst data transceiver were also included so the hardware could report its location to the recovery team. The capsules were connected to the main payload via Ethernet, and 24V DC was also available.

The plan had been to release the first DRS capsule on day 40, and then another every 20 days after that, whenever SuperBIT passed over land. However, when it became clear that SuperBIT would have to come down on May 25, it was decided to drop two DRS capsules over Argentina's Santa Cruz Province. Both of the DRS capsules released were recovered from their reported locations -- a curious cougar apparently nosed around one of them without causing damage -- and the data was fully intact. Of the unreleased DRS capsules, one failed for unknown reasons at launch -- the team speculated that perhaps a cable came loose -- but the other also contained an intact data set.

Space

FAA Clears SpaceX To Launch Second Starship Flight (cnbc.com) 19

The FAA has cleared SpaceX to launch its second spaceflight attempt of its Starship rocket. CNBC reports: SpaceX posted on the social media platform X shortly after the greenlight that it was "targeting Friday, November 17 for Starship's second flight test." A two-hour launch window will begin at 8 a.m. ET. SpaceX plans to livestream the Starship launch, with a webcast beginning about 30 minutes before lift off. Starship first launched in April, achieving flight for a few minutes before exploding mid-air, severely damaging the ground infrastructure and raising environmental concerns. The FAA in coordination with the U.S. Fish and Wildlife Service launched a safety review prior to issuing a new flight license for the second attempt.

FWS determined that the rocket launch and subsequent damage to the pad infrastructure had no long-term negative effects on the surrounding ecology, according to an agency report released Wednesday. Still, SpaceX will help mitigate damage to the area by reducing sound waves and vibrations, assisting in fire suppression, and providing launch pad protection, the agency said. As a result, "the FAA determined SpaceX met all safety, environmental, policy and financial responsibility requirements," the agency said in a statement Wednesday.

Space

Planet Where It Rains Sand Revealed By Nasa Telescope (theguardian.com) 22

Nasa's James Webb space telescope has revealed a planet where specks of sand fall as rain, in groundbreaking observations. From a report: The planet, Wasp-107b, lies 200 light years away in the Virgo constellation and had already caught the attention of astronomers because it is very large but very light, earning it the nickname the "candy floss" planet. The latest observations give an unprecedented glimpse of a strange and exotic world beyond our solar system that features silicate sand clouds and rain, scorching temperatures, raging winds and the distinct burnt-matches scent of sulphur dioxide. "Our knowledge of other planets is based on what we know from Earth," said Prof Leen Decin, of the Catholic Institute (KU) Leuven and first author of the research. "That's a very restricted knowledge."

The planet was discovered in 2017 after astronomers spotted a telltale periodic flickering of light from its host star each time the planet passed in front of it. "It's like a fly in front of a street lamp," said Decin. "You see a slight dimming of the light." James Webb takes these observations to the next level by measuring starlight that is filtered through the planet's atmosphere. Because different elements absorb different wavelengths of light, the spectrum of starlight indicates which gases are present. Wasp-107b is similar in mass to Neptune but almost the size of Jupiter, and its vast, diffuse nature allows the James Webb telescope to peer deep into its atmosphere.

ISS

Lost NASA Tool Bag Can Be Seen With Binoculars (nbcnews.com) 74

A tool bag that astronauts accidentally let float away during a routine spacewalk at the International Space Station is now orbiting Earth and can be seen with a pair of binoculars. NBC News reports: The bag drifted away from the space station this month when NASA astronauts Jasmin Moghbeli and Loral O'Hara were performing maintenance on the exterior of the orbiting outpost. "During the activity, one tool bag was inadvertently lost," NASA officials wrote Nov. 1 in a blog post detailing the outcome of the spacewalk. "Flight controllers spotted the tool bag using external station cameras. The tools were not needed for the remainder of the spacewalk."

The bag is now circling the planet in low-Earth orbit, but NASA said there's little danger of the tools hitting the International Space Station. "Mission Control analyzed the bag's trajectory and determined that risk of recontacting the station is low and that the onboard crew and space station are safe with no action required," the agency said in the blog post. For now then, the lost tool bag has become a new artificial "star" in the night sky.
The tool bag is orbiting about a minute ahead of the space station and may be bright enough to see with a pair of binoculars. "Skywatchers who want to try to spot the tool bag in orbit should head out on a clear night and first determine when the International Space Station is passing overhead," reports NBC News. "The tool bag will likely remain visible in the night sky for a few months, before its orbit slowly degrades and it eventually falls toward Earth."

You can track the ISS via NASA's Spot the Station website.
NASA

NASA's Mars Fleet Will Still Conduct Science While Lying Low (nasa.gov) 13

Rovers and orbiters will continue collecting limited data during a two-week communications pause due to the position of Earth, the Sun, and the Red Planet. From a report: NASA will hold off sending commands to its Mars fleet for two weeks, from Nov. 11 to 25, while Earth and the Red Planet are on opposite sides of the Sun. Called Mars solar conjunction, this phenomenon happens every two years. The missions pause because hot, ionized gas expelled from the Sun's corona could potentially corrupt radio signals sent from Earth to NASA's Mars spacecraft, leading to unexpected behaviors.

That's not to say those robotic explorers are on holiday. NASA's Perseverance and Curiosity rovers will monitor changes in surface conditions, weather, and radiation as they stay parked. Although momentarily grounded, the Ingenuity Mars Helicopter will use its color camera to study the movement of sand, which poses an ever-present challenge to Mars missions. The Mars Reconnaissance Orbiter and the Odyssey orbiter will continue imaging the surface. And MAVEN will continue collecting data on interactions between the atmosphere and the Sun.

Science

Oldest, Massive Black Hole Discovered With JWST Data. Confirms 'Collapsed Gas Cloud' Theory (nasa.gov) 18

"Scientists have discovered the oldest black hole yet," reports the CBC, calling it "a cosmic beast formed a mere 470 million years after the Big Bang."

"The findings, published Monday, confirm what until now were theories that supermassive black holes existed at the dawn of the universe..." Given the universe is 13.7 billion years old, that puts the age of this black hole at 13.2 billion years. Even more astounding to scientists, this black hole is a whopper — 10 times bigger than the black hole in our own Milky Way. It's believed to weigh anywhere from 10 to 100 per cent the mass of all the stars in its galaxy, said lead author Akos Bogdan of the Harvard-Smithsonian Center for Astrophysics. That is nowhere near the miniscule ratio of the black holes in our Milky Way and other nearby galaxies — an estimated 0.1 per cent, he noted. "It's just really early on in the universe to be such a behemoth," said Yale University's Priyamvada Natarajan, who took part in the study published in the journal Nature Astronomy. A companion article appeared in the Astrophysical Journal Letters...

The researchers believe the black hole formed from colossal clouds of gas that collapsed in a galaxy next door to one with stars. The two galaxies merged, and the black hole took over.

The researchers combined data from NASA's Chandra X-ray Observatory and NASA's James Webb Space Telescope, reports NASA: "We needed Webb to find this remarkably distant galaxy and Chandra to find its supermassive black hole," said Akos Bogdan of the Center for Astrophysics/Harvard & Smithsonian who leads a new paper in the journal Nature Astronomy describing these results. "We also took advantage of a cosmic magnifying glass that boosted the amount of light we detected." This magnifying effect is known as gravitational lensing...

This discovery is important for understanding how some supermassive black holes can reach colossal masses soon after the big bang. Do they form directly from the collapse of massive clouds of gas, creating black holes weighing between about 10,000 and 100,000 Suns? Or do they come from explosions of the first stars that create black holes weighing only between about 10 and 100 Suns...? Bogdan's team has found strong evidence that the newly discovered black hole was born massive... The large mass of the black hole at a young age, plus the amount of X-rays it produces and the brightness of the galaxy detected by Webb, all agree with theoretical predictions in 2017 by co-author Priyamvada Natarajan of Yale University for an "Outsize Black Hole" that directly formed from the collapse of a huge cloud of gas.

"We think that this is the first detection of an 'Outsize Black Hole' and the best evidence yet obtained that some black holes form from massive clouds of gas," said Natarajan. "For the first time we are seeing a brief stage where a supermassive black hole weighs about as much as the stars in its galaxy, before it falls behind." The researchers plan to use this and other results pouring in from Webb and those combining data from other telescopes to fill out a larger picture of the early universe.

NASA

Frank Borman, Commander of Apollo 8, Dies At 95 (arstechnica.com) 21

Long-time Slashdot reader HanzoSpam shares a report from Ars Technica: Frank Borman, an Air Force test pilot, astronaut, and accomplished businessman who led the first crew to fly to the Moon in 1968, died Tuesday in Montana, NASA said Thursday. He was 95 years old. Borman, joined by crewmates Jim Lovell and Bill Anders, orbited the Moon 10 times over the course of about 20 hours. They were the first people to see the Earth from another world, a memory of "wonderment" Borman recalled decades later. Apollo 8 produced one of the most famous photos ever taken, the iconic "Earthrise" showing a blue orb -- the setting for all of human history until then -- suspended in the blackness of space over the charcoal gray of the Moon's cratered surface.

Borman was born in Gary, Indiana, on March 14, 1928, and raised in Tucson, Arizona. He learned to fly airplanes as a teenager, then attended the US Military Academy at West Point before earning his commission in the Air Force to start training as a fighter pilot. Following a similar career path as other early astronauts, Borman became an experimental test pilot, receiving a master's degree in aeronautical engineering from Caltech, and served a stint as an assistant professor at West Point. NASA accepted applications for a second class of astronauts in 1962 to follow the original Mercury Seven. Borman was one of the "New Nine" astronauts, and he reported for training in Houston.
"Today we remember one of NASA's best," NASA Administrator Bill Nelson said in a statement. "Astronaut Frank Borman was a true American hero. Among his many accomplishments, he served as the commander of the Apollo 8 mission, humanity's first mission around the Moon in 1968."
Space

SpaceX Will Launch the Space Force's Mysterious X-37B Space Plane On Falcon Heavy (space.com) 31

The U.S. Space Force's shadowy X-37B spaceplane is set to launch atop a SpaceX Falcon Heavy rocket on Dec. 7. It'll mark the seventh mission for the X-37B, but the first time it'll fly on a heavy-lift launcher. Space.com reports: Little is known about the capabilities and operations of the space plane, but Space Force says the mission will follow previous flights that used the X-37B as a test bed for launching experimental payloads and returning them to Earth. "We are excited to expand the envelope of the reusable X-37B's capabilities, using the flight-proven service module and Falcon Heavy rocket to fly multiple cutting-edge experiments for the Department of the Air Force and its partners," said Lt. Col. Joseph Fritschen, program director for the X-37B, in the statement.

It isn't known why the X-37B is launching atop a Falcon Heavy for the USSF-52 mission. Five of the space plane's previous missions launched on United Launch Alliance Atlas V rockets, while its fifth mission, USA-277, took off on top of SpaceX's smaller rocket, the Falcon 9 (Falcon Heavy consists of three Falcon 9 boosters strapped together). Such a change could suggest that the space plane is carrying heavier payloads or is sporting a new hardware configuration. So far, Space Force has only stated that the mission will "expand the United States Space Force's knowledge of the space environment by experimenting with future space domain awareness technologies," according to the statement. However, Space Force's statement adds that the mission will carry a NASA experiment known as Seeds-2 that will test the effects that space-based radiation has on plant seeds during a long-duration spaceflight.

Moon

Scientists Think They've Found 'Blobs' From Planet that Collided with Earth to Form the Moon (cnn.com) 25

"Slabs of material from an ancient extraterrestrial planet are hidden deep within the Earth," argues a new scientific theory (as described by CNN).

"Scientists widely agree that an ancient planet likely smashed into Earth as it was forming billions of years ago, spewing debris that coalesced into the moon that decorates our night sky today." But then whatever happened to that planet? No leftover fragments from a hypothetical planet "Theia" have ever been found in our solar system.

But the new theory "suggests that remnants of the ancient planet remain partially intact, buried beneath our feet." If the theory is correct, it would not only provide additional details to fill out the giant-impact hypothesis but also answer a lingering question for geophysicists. They were already aware that there are two massive, distinct blobs that are embedded deep within the Earth. The masses — called large low-velocity provinces, or LLVPs — were first detected in the 1980s. One lies beneath Africa and another below the Pacific Ocean.
The study's lead author (Dr. Qian Yuan, a geophysicist and postdoctoral fellow at the California Institute of Technology) first proposed the idea for a paper three times in 2021 — and was rejected each time. But "then he came across scientists who did just the type of research Yuan needed." Their work, which assigned a certain size to Theia and speed of impact in the modeling, suggested that the ancient planet's collision likely did not entirely melt Earth's mantle, allowing the remnants of Theia to cool and form solid structures instead of blending together in Earth's inner stew... If Theia were a certain size and consistency, and struck the Earth at a specific speed, the models showed it could, in fact, leave behind massive hunks of its guts within Earth's mantle and also spawn the debris that would go on to create our moon...

The study Yuan published this week includes coauthors from a variety of disciplines across a range of institutions, including Arizona State, Caltech, the Shanghai Astronomical Observatory and NASA's Ames Research Center.

Space

A SpaceX 'Falcon 9' Booster Rocket Has Launched 18 Times Successfully, a New Record (arstechnica.com) 86

Ars Technica reports: In three-and-a-half years of service, one of SpaceX's reusable Falcon 9 boosters stands apart from the rest of the company's rocket inventory. This booster, designated with the serial number B1058, has now flown 18 times.

For its maiden launch on May 30, 2020, the rocket propelled NASA astronauts Doug Hurley and Bob Behnken into the history books on SpaceX's first mission to send people into orbit. This ended a nine-year gap in America's capability to launch astronauts into low-Earth orbit and was the first time a commercial spacecraft achieved this feat... Over the course of its flights to space and back, that white paint has darkened to a charcoal color. Soot from the rocket's exhaust has accumulated, bit by bit, on the 15-story-tall cylinder-shaped booster. The red NASA worm logo is now barely visible.

On Friday night, this rocket launched for the 18th time, breaking a tie at 17 flights with another Falcon 9 booster in SpaceX's fleet... It fired three engines for a braking burn to slow for reentry, then ignited a single engine and extended four carbon-fiber landing legs to settle onto a floating platform holding position near the Bahamas. The drone ship will return the rocket to Cape Canaveral, where SpaceX will refurbish the vehicle for a 19th flight.

Other interesting statistics from the article:
  • This single booster rocket has launched 846 satellites into space. (Astrophysicist/spaceflight tracker Jonathan McDowell calculates there are now over 5,000 Starlink satellites in orbit.)
  • A SpaceX official told Ars Technica the company might extend the limit on Falcon 9 booster flights beyond 20 for Starlink satellites.
  • Friday's launch became the 79th launch so far in 2023 of a Falcon rocket, with SpaceX aiming for a total of 100 by the end of December, and 144 in 2023 (an average of one flight every two-and-a-half days).
  • Since 2016, SpaceX has now had 249 consecutive successful launches of its Falcon 9 and Falcon Heavy rockets

Space

NASA Spacecraft Discovers Tiny Moon Around Asteroid (apnews.com) 18

During a close flyby of the asteroid Dinkinesh, NASA's Lucy spacecraft discovered a mini moon a mere one-tenth-of-a-mile (220 meters) in size. For comparison, Dinkinesh is barely a half-mile (790 meters) across. The Associated Press reports: NASA sent Lucy past Dinkinesh as a rehearsal for the bigger, more mysterious asteroids out near Jupiter. Launched in 2021, the spacecraft will reach the first of these so-called Trojan asteroids in 2027 and explore them for at least six years. The original target list of seven asteroids now stands at 11. Dinkinesh means "you are marvelous" in the Amharic language of Ethiopia. It's also the Amharic name for Lucy, the 3.2 million-year-old remains of a human ancestor found in Ethiopia in the 1970s, for which the spacecraft is named.
ISS

NASA Open To Extending ISS Beyond 2030 (spacenews.com) 21

Jeff Foust reports via SpaceNews: A NASA official opened the door to keeping the International Space Station in operation beyond 2030 if commercial space stations are not yet ready to take over by the end of the decade. Speaking at the Beyond Earth Symposium here Nov. 2, Ken Bowersox, NASA associate administrator for space operations, said it was "not mandatory" to retire the ISS as currently planned at the end of the decade depending on the progress companies are making on commercial stations. "The timeline is flexible," he said of that transition from the ISS to commercial stations. "It's not mandatory that we stop flying the ISS in 2030. But, it is our full intention to switch to new platforms when they're available." [...]

Bowersox acknowledged that schedule depends on the readiness of those commercial stations. "When it happens is going to depend a lot the maturity of the market," he said, which includes both the status of commercial stations and non-NASA customers for them. He made it clear that NASA does not expect to be the only customer for commercial stations. NASA's current requirements for those stations anticipate having two astronauts at a time on them, less than the ISS. "We looked at what we thought would be reasonable and what would actually give us a cost savings," he said of that requirement. "My biggest concern is if we get too far ahead of where the market and NASA has to carry the full cost of the platforms for longer, and we transition too quickly," he said. That could force NASA to move money from current ISS utilization to support those stations. "If we have a badly managed transition, we could find ourselves getting weak in those areas."

NASA

Ken Mattingly, Astronaut Scrubbed From Apollo 13, Is Dead At 87 (nytimes.com) 28

An anonymous reader quotes a report from the New York Times: Ken Mattingly, who orbited the moon and commanded a pair of NASA shuttle missions, but who was remembered as well for the flight he didn't make -- the near-disastrous mission of Apollo 13 -- died on Tuesday in Arlington, Va. He was 87. His death was confirmed by Cheryl Warner, a NASA spokeswoman. She did not specify the cause or say whether he died at home in Arlington or in a hospital there. Mr. Mattingly, a former Navy jet pilot with a degree in aeronautical engineering, joined NASA in 1966. But his first spaceflight didn't come until April 1972, when the space agency launched Apollo 16, the next-to-last manned mission to the moon. Piloting the spacecraft's command module in orbit while holding the rank of lieutenant commander, he took extensive photos of the moon's terrain and conducted experiments while Cmdr.John W. Young of the Navy and Lt. Col. Charles M. Duke Jr. of the Air Force, having descended in the lunar lander, collected rock and soil samples from highlands near the crater known as Descartes.

While the three astronauts were en route back to Earth, Commander Mattingly stepped outside the spacecraft -- which he had named Casper for the resemblance, as least in a child's eye, between an astronaut in a bulky spacesuit and the cartoon character Casper the Friendly Ghost. Maneuvering along handrails while connected to the spacecraft by a tether, he retrieved two attached canisters of film with photos of the moon that he had taken from inside the capsule for analysis back on Earth. When the Apollo program ended, Commander Mattingly headed the astronaut support office for the shuttle program, designed to ferry astronauts to and from an eventual Earth-orbiting International Space Station. In the summer of 1982, he commanded the fourth and final Earth-orbiting test flight of the shuttle Columbia, which completed 112 orbits. He was also the commander of the first space shuttle flight conducted for the Department of Defense, a classified January 1985 mission aboard Discovery.

All those achievements came after he had been scrubbed at virtually the last moment from the flight of Apollo 13 in April 1970. He was to have orbited the moon in the command module while Cmdr.James A. LovellJr. of the Navy and Fred W. Haise Jr. explored the lunar surface. But NASA removed Commander Mattingly from the crew in the final days before launching, when blood tests determined that he had recently been exposed to German measles from training with Colonel Duke, the backup lunar module pilot, who in turn had contracted it from his proximity to an infected child at a neighborhood party. Commander Mattingly was the only one of the Apollo 13 crewmen who were found to lack antibodies against the illness. His backup, John L. Swigert Jr., became the command module pilot, leaving Commander Mattingly to watch the progress ofthe flight from mission control. [...] After his Apollo and space shuttle flights, Mr. Mattingly continued to work for NASA in the 1980s. He retired from the space agency and the Navy as a rear admiral and went on to work for aerospace companies.

Medicine

Breakthrough Kidney Stone Procedure Makes It Possible For Astronauts To Travel To Mars (komonews.com) 70

An anonymous reader quotes a report from KOMO News: A groundbreaking medical procedure for those with kidney stones will soon be offered at the University of Washington after more than two decades of research. It will also give astronauts the go ahead they need from NASA to travel to Mars. It's a groundbreaking procedure to get rid of painful stones while you're awake, no anesthesia needed. "This has the potential to be game changing," said Dr. Kennedy Hall with UW Medicine. Still being run through clinical trials at UW Medicine, the procedure called burst wave lithotripsy uses an ultrasound wand and soundwaves to break apart the kidney stone. Ultrasonic propulsion is then used to move the stone fragments out, potentially giving patients relief in 10 minutes or less.

This technology is also making it possible for astronauts to travel to Mars, since astronauts are at a greater risk for developing kidney stones during space travel. It's so important to NASA, the space agency has been funding the research for the last 10 years. "They could potentially use this technology while there, to help break a stone or push it to where they could help stay on their mission and not have to come back to land," said Harper.
The research has been published in the Journal of Urology.
Mars

Mars Has a Surprise Layer of Molten Rock Inside (nature.com) 35

Alexandra Witze reports via Nature: A meteorite that slammed into Mars in September 2021 has rewritten what scientists know about the planet's interior. By analysing the seismic energy that vibrated through the planet after the impact, researchers have discovered a layer of molten rock that envelops Mars's liquid-metal core. The finding, reported today in two papers in Nature, means that the Martian core is smaller than previously thought. It also resolves some lingering questions about how the red planet formed and evolved over billions of years.

The discovery comes from NASA's InSight mission, which landed a craft with a seismometer on Mars's surface. Between 2018 and 2022, that instrument detected hundreds of "marsquakes' shaking the planet. In July 2021, on the basis of the mission's observations of 11 quakes, researchers reported that the liquid core of Mars seemed to have a radius of around 1,830 kilometers3. That was bigger than many scientists were expecting. And it suggested that the core contained surprisingly high amounts of light chemical elements, such as sulfur, mixed with iron. But the September 2021 meteorite impact "unlocked everything," says Henri Samuel, a geophysicist at the Institute of Earth Physics of Paris and lead author of one of today's papers1. The meteorite struck the planet on the side opposite to where InSight was located. That's much more distant than the marsquakes that InSight had previously studied, and allowed the probe to detect seismic energy traveling all the way through the Martian core4. "We were so excited," says Jessica Irving, a seismologist at the University of Bristol, UK, and a co-author of Samuel's paper.

For Samuel, it was an opportunity to test his idea that a molten layer of rock surrounds Mars's core5. The way the seismic energy traversed the planet showed that what scientists had thought was the boundary between the liquid core and the solid mantle, 1,830 kilometers from the planet's centre, was actually a different boundary between liquid and solid. It was the top of the newfound layer of molten rock meeting the mantle (see 'Rethinking the Martian core'). The actual core is buried beneath that molten-rock layer and has a radius of only 1,650 kilometers, Samuel says. The revised core size solves some puzzles. It means that the Martian core doesn't have to contain high amounts of light elements -- a better match to laboratory and theoretical estimates. A second liquid layer inside the planet also meshes better with other evidence, such as how Mars responds to being deformed by the gravitational tug of its moon Phobos.

The second paper in Nature today2, from a team independent of Samuel's, agrees that Mars's core is enveloped by a layer of molten rock, but estimates that the core has a radius of 1,675 kilometers. The work analyzed seismic waves from the same distant meteorite impact, as well as simulations of the properties of mixtures of molten elements such as iron, nickel and sulfur at the high pressures and temperatures in the Martian core. Having molten rock right up against molten iron "appears to be unique," says lead author Amir Khan, a geophysicist at ETH Zurich. "You have this peculiarity of liquid-liquid layering, which is something that doesn't exist on the Earth." The molten-rock layer might be left over from a magma ocean that once covered Mars. As it cooled and solidified into rock, the magma would have left behind a deep layer of radioactive elements that still release heat and keep rock molten at the base of the mantle, Samuel says.

Biotech

Can Humans Have Babies In Space? SpaceBorn United Wants To Find Out (technologyreview.com) 105

An anonymous reader quotes a report from MIT Technology Review: Egbert Edelbroek was acting as a sperm donor when he first wondered whether it's possible to have babies in space. Curious about the various ways that donated sperm can be used, Edelbroek, a Dutch entrepreneur, began to speculate on whether in vitro fertilization technology was possible beyond Earth -- or could even be improved by the conditions found there. Could the weightlessness of space be better than a flat laboratory petri dish? Now Edelbroek is CEO of SpaceBorn United, a biotech startup seeking to pioneer the study of human reproduction away from Earth. Next year, he plans to send a mini lab on a rocket into low Earth orbit, where in vitro fertilization, or IVF, will take place. If it succeeds, Edelbroek hopes his work could pave the way for future space settlements.

"Humanity needs a backup plan," he says. "If you want to be a sustainable species, you want to be a multiplanetary species." Beyond future space colonies, there is also a more pressing need to understand the effects of space on the human reproductive system. No one has ever become pregnant in space -- yet. But with the rise of space tourism, it's likely that it will eventually happen one day. Edelbroek thinks we should be prepared. Despite the burgeoning interest in deep space exploration and settlement, prompted in part by billionaires such as Elon Musk and Jeff Bezos, we still know very little about what happens to our reproductive biology when we're in orbit. A report released in September by the US National Academies of Science, Engineering, and Medicine points out that almost no research has been done on human reproduction in space, adding that our understanding of how space affects reproduction is "vital to long-term space exploration, but largely unexplored to date."

Some studies on animals have suggested that the various stages of reproduction -- from mating and fertilization to embryo development, implantation, pregnancy, and birth -- can function normally in space. For example, in the very first such experiment, eight Japanese medaka fish developed from egg to hatchling aboard the space shuttle Columbia in 1994. All eight survived the return to Earth and seemed to behave normally.Yet other studies have found evidence that points to potential problems. Pregnant rats that spent much of their third trimester -- a total of five days -- on a Soviet satellite in 1983 experienced complications during labor and delivery. Like all astronauts returning to Earth, the rats were exhausted and weak. Their deliveries lasted longer than usual, likely because of atrophied uterine muscles. All the pups in one of the litters died during delivery, the result of an obstruction thought to be due in part to the mother's weakened state.

To Edelbroek, these inconclusive results point to a need to systematically isolate each step in the reproductive process in order to better understand how it is affected by conditions like lower gravity and higher radiation exposure. The mini lab his company developed is designed to do exactly that. It is about the size of a shoebox and uses microfluidics to connect a chamber containing sperm to a chamber containing an egg. It can also rotate at different speeds to replicate the gravitational environment of Earth, the moon, or Mars. It is small enough to fit inside a capsule that can be housed on top of a rocket and launched into space.After the egg has been fertilized in the device, it splits into two cells, each of which divides again to form four cells and so on. After five to six days, the embryo reaches a stage known as a blastocyst, which looks like a hollow ball. At this point, the embryos in the mini lab will be cryogenically frozen for their return to Earth.

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