schwit1 shares a report from Popular Science: NASA said in a conference call with reporters that it would not ever be flying its experimental electric aircraft, the X-57, citing safety concerns that are insurmountable with the time and budget they have for the project. The X-57 program will wind down without the aircraft ever going up into the sky. The project had previously seen challenges. For example, transistor modules in the electrical inverters kept failing and "blowing up" in testing, Sean Clark, the project's principal investigator told Popular Science in January. That problem was solved, Clark said.

The problem that led them to scrap the plan to fly the aircraft stemmed from motors that power the propellers. Clark said today that analysis of the issue is ongoing. "As we got into the detailed analysis and airworthiness assessment of the motors themselves, we found that there were some potential failure modes with the motors mechanically, under flight loads, that we hadn't seen on the ground," he said. "We've got a great design in progress to fix it, it's just [that] it would take too long for us to go through and implement that."

NASA said that the reason behind permanently scrubbing the flight is safety and time. "Unfortunately, we recently discovered a potential failure mode in the propulsion system that we determined to pose an unacceptable risk to the pilot's safety, and the safety of personnel on the ground, during ground tests," Bradley Flick, the director of NASA's Armstrong Flight Research Center in California, said in the call. "Mitigation of that failure would take the project well beyond its planned end at the end of this fiscal year, so NASA has decided to end the project on time without taking the vehicle to flight."

Four volunteers will spend the next 378 days in a simulation of Mars, facing harsh, realistic challenges in tight quarters under NASA's watchful eye in preparation for a real-life mission to the red planet. From a report: Research scientist Kelly Haston, structural engineer Ross Brockwell, emergency medicine physician Nathan Jones and US Navy microbiologist Anca Selariu were locked into the virtual planet at the Johnson Space Center in Houston, Texas, on Sunday as part of the first of a three-year-long simulation study by the space agency. "The knowledge we gain here will help enable us to send humans to Mars and bring them home safely," Grace Douglas, the mission's principal investigator at NASA, said during a briefing.

Nasa 3D-printed the 1,700-square-foot facility, dubbed Crew Health and Performance Exploration Analog -- or CHAPEA. It will be the longest analog mission in the agency's history. The habitat -- named Mars Dune Alpha -- will feature a kitchen, private crew quarters, and two bathrooms, with medical, work, and recreation areas. The crew will be expected to carry out "mission activities," like collecting geological samples, exercising, and practicing personal hygiene and health care, with minimal contact with their family and loved ones, according to NASA. To capture the true essence of life on our neighboring planet, the crew must work through "environmental stressors," including limits on resources, periods of isolation, and equipment failures.

An ancient Nevada lakebed could become a vast source of the lithium used in electric car batteries, reports the Associated Press. But "NASA says the same site — flat as a tabletop and undisturbed like none other in the Western Hemisphere — is indispensable for calibrating the razor-sharp measurements of hundreds of satellites orbiting overhead." At the space agency's request, the U.S. Bureau of Land Management has agreed to withdraw 36 square miles (92 square kilometers) of the eastern Nevada terrain from its inventory of federal lands open to potential mineral exploration and mining. NASA says the long, flat piece of land above the untapped lithium deposit in Nevada's Railroad Valley has been used for nearly three decades to get measurements just right to keep satellites and their applications functioning properly. "No other location in the United States is suitable for this purpose," the Bureau of Land Management concluded in April after receiving NASA's input on the tract 250 miles (400 kilometers) northeast of Las Vegas...

In Railroad Valley, satellite calculations are critical to gathering information beamed from space with widespread applications from weather forecasting to national security, agricultural outlooks and natural disasters, according to NASA, which said the satellites "provide vital and often time-critical information touching every aspect of life on Earth." That increasingly includes certifying measurements related to climate change. Thus the Nevada desert paradox, critics say. Although lithium is the main ingredient in batteries for electric vehicles key to reducing greenhouse gases, in this case the metal is buried beneath land NASA says must remain undisturbed to certify the accuracy of satellites monitoring Earth's warming atmosphere...

The area's unchanged nature has allowed NASA to establish a long record of images of the undisturbed topography to assist precise measurement of distances using the travel time of radio signals and assure "absolute radiometric calibration" of sensors on board satellites. "Activities that stand to disrupt the surface integrity of Railroad Valley would risk making the site unusable," Jeremy Eggers, a spokesman for NASA's Goddard Space Flight Center in Greenbelt, Maryland, told The Associated Press.
One company with most of the mining rights says the tract's withdrawal will put more than half the site's value out of reach, according to the article.

But the Associated Press got a supportive quote for the move from the satellite imaging company Planet Labs, which has relied on NASA's site to calibrate more than 250 of its satellites since 2016. "As our nation becomes ever more impacted by an evolving and changing environment, it is critical to have reliable and accurate data and imagery of our planet."

The Associated Press reports from the Paris Air Show, where developers of electric vertical take-off and landing aircraft (or eVTOLs) demonstrated their surprisingly quiet electrically-powered craft. And in one year the Paris region "is planning for a small fleet of electric flying taxis to operate on multiple routes when it hosts the 2024 Olympic and Paralympic Games next summer." Unless aviation regulators in China beat Paris to the punch by green-lighting a pilotless taxi for two passengers under development there, the French capital's prospective operator — Volocopter of Germany — could be the first to fly taxis commercially if European regulators give their OK...

The limited power of battery technology restricts the range and number of paying passengers they can carry, so eVTOL hops are likely to be short and not cheap at the outset. And while the vision of simply beating city traffic by zooming over it is enticing, it also is dependent on advances in airspace management. Manufacturers of eVTOLs aim in the coming decade to unfurl fleets in cities and on more niche routes for luxury passengers, including the French Riveria. But they need technological leaps so flying taxis don't crash into each other and all the other things already congesting the skies or expected to take to them in very large numbers — including millions of drones.

Starting first on existing helicopter routes, "we'll continue to scale up using AI, using machine-learning to make sure that our airspace can handle it," said Billy Nolen of Archer Aviation Inc. It aims to start flying between downtown Manhattan and Newark's Liberty Airport in 2025. That's normally a 1-hour train or old-fashioned taxi ride that Archer says its sleek, electric 4-passenger prototype could cover in under 10 minutes. Nolen was formerly acting head of the Federal Aviation Administration, the U.S. regulator that during his time at the agency was already working with NASA on technology to safely separate flying taxis.

Just as Paris is using its Olympic Games to test flying taxis, Nolen said the 2028 Los Angeles Olympics offer another target for the industry to aim for and show that it can fly passengers in growing numbers safely, cleanly and affordably. "We'll have hundreds, if not thousands, of eVTOLs by the time you get to 2028," he said in an interview with The Associated Press at the Paris show. The "very small" hoped-for experiment with Volocopter for the Paris Games is "great stuff. We take our hats off to them," he added. "But by the time we get to 2028 and beyond ... you will see full-scale deployment across major cities throughout the world."
The article includes a skeptical quote from Richard Aboulafia of aerospace consultancy AeroDynamic Advisory.

"You and I can take air taxis right now. It's called a helicopter."

The "BepiColombo" mission, a joint European-Japanese effort, "has recently completed its third of six planned flybys of Mercury, capturing dozens of images in the process," reports the Byte: At its closest, the spacecraft soared within just 150 miles of Mercury. This occurred on the night side of the planet, however, too dark for optimal imaging. Instead, the first and nearest image was taken 12 minutes after the closest approach, at the still impressive proximity of some 1,100 miles above the surface.
Now the ESA has spliced together 217 images from that flyby into a short video, which culminates with a zoomed-in closeup of Mercury's cratered surface. And the music in that video had a little help from AI, reports Phys.org: Music was composed for the sequence by ILÄ (formerly known as Anil Sebastian), with the assistance of AI tools developed by the Machine Intelligence for Musical Audio group, University of Sheffield.

Music from the previous two flyby movies — composed by Maison Mercury Jones' creative director ILÄ and Ingmar Kamalagharan — was given to the AI tool to suggest seeds for the new composition, which ILÄ then chose from to edit and weave together with other elements into the new piece.

The team at the University of Sheffield has developed an Artificial Musical Intelligence (AMI), a large-scale general-purpose deep neural network that can be personalized to individual musicians and use cases. The project with the University of Sheffield is aimed at exploring the boundaries of the ethics of AI creativity, while also emphasizing the essential contributions of the (human) composer.
From the ESA's announcement: BepiColombo's next Mercury flyby will take place on 5 September 2024, but there is plenty of work to occupy the teams in the meantime... BepiColombo's Mercury Transfer Module will complete over 15 000 hours of solar electric propulsion operations over its lifetime, which together with nine planetary flybys in total — one at Earth, two at Venus, and six at Mercury — will guide the spacecraft towards Mercury orbit.

The ESA-led Mercury Planetary Orbiter and the JAXA-led Mercury Magnetospheric Orbiter modules will separate into complementary orbits around the planet, and their main science mission will begin in early 2026.
One spaceflight blog notes the propulsive energy required for an eventual entry into the orbit of Mercury "is greater than that of a mission to fly by Pluto.

"Only one other spacecraft has orbited Mercury, and that was NASA's MESSENGER probe, which orbited the planet from 2011 to 2015."

Long-time Slashdot reader Zak3056 shared this report from the Washington Post: U.S. Navy acoustic sensors detected the likely implosion of the Titan submersible hours after the vessel began its fatal descent on Sunday, U.S. Navy officials said Thursday, a revelation that means the sprawling search for the vessel was conducted even though senior officials already had some indication the Titan was destroyed...

The acoustic detection was one significant piece of information, but the search had to continue to exhaust all possibilities, said Mark Cancian, a senior adviser with the Center for Strategic and International Studies... The United States has used a network of devices to detect undersea noises for decades. The fact that the Titan's implosion was detected this way isn't surprising, Cancian said. "I would be surprised if they hadn't heard it."
A Las Vegas financier had bought tickets on the ill-fated submarine for himself, plus his 20-year-old son Sean and a friend. The son now tells People that "The whole reason my dad didn't go was because I told him, 'Dude, this submarine cannot survive going that deep in the ocean.'"

OceanGate CEO Stockton Rush told the financier that their submarine was safer than crossing the street. "He was a good guy, great heart, really believed in what he was doing and saying," the financier tells People. "But he didn't want to hear anything that conflicted with his world view, and he would just dismiss it... He was so passionate about this project, and he was such a believer. He drank his own Kool-Aid, and there was just no talking him out of it." For Sean, the first red flag that alarmed him about Rush was his arrival in Las Vegas, where Sean, Jay and Rush were set to meet. He says they asked why Rush was landing at a North Las Vegas airport rather than the commercial airports like McCarran. "He's like, 'Yeah, I built this plane with my hands, and I'm test-flying it right now.' And we're like, 'What?' That was my first red flag," he explains.
OceanGate's CEO later even tried offering the financier a substantial discount on the three tickets, calling his son "uninformed."

OceanGate had also claimed their submarine was designed and engineered in collaboration with experts from NASA, Boeing and the University of Washington — but now ABC News says the company exaggerated those partnerships: OceanGate's founder and CEO Stockton Rush — who was aboard the missing vessel — made similar statements about his company's partnerships during an interview with CBS News correspondent David Pogue in 2022, who asked about the construction of the Titan submersible, which Rush said used some minor parts purchased from consumer retailers like Camping World. "The pressure vessel is not MacGyvered at all because that's where we worked with Boeing and NASA, [and] University of Washington," Rush said...

Kevin Williams, the executive director of the University of Washington's Applied Physics Laboratory, told ABC News the school and laboratory were also not involved in the "design, engineering or testing" of the Titan submersible. Victor Balta, a UW spokesperson, added that OceanGate and UW's Applied Physics Laboratory initially signed a $5 million collaborative research agreement, but the two entities "parted ways" after only $650,000 of work was completed. That research only resulted in the development of another OceanGate submersible, the shallow-diving Cyclops I submersible, according to Balta. The steel-hulled Cyclops I is only rated to reach 500 meters, compared to the Titan, which is constructed from carbon fiber and titanium to reach depths of 4,000 meters, the company said...

When asked about the details of those relationships with OceanGate, a Boeing representative told ABC News that the aerospace company was not involved in designing or building the deep-sea submersible. "Boeing was not a partner on the Titan and did not design or build it," a Boeing spokesperson told ABC News in a statement...

In a statement to ABC News, NASA confirmed it consulted on materials and manufacturing for the Titan submersible pursuant to an agreement with OceanGate. "NASA did not conduct testing and manufacturing via its workforce or facilities, which was done elsewhere by OceanGate," the statement said.
CNN reports that the Royal Canadian Mounted Police are now exploring whether "criminal, federal, or provincial laws may possibly have been broken."

Motherboard reports: Scientists are currently searching for the submerged remains of an interstellar object that crashed into the skies near Papua New Guinea in January 2014 and probably sprinkled material from another star system into the Pacific Ocean, according to an onboard diary by Avi Loeb, the Harvard astronomer who is leading the expedition. The effort, which kicked off on June 14, aims to recover what is left of the otherworldly fireball using a deep-sea magnetic sled.

The team has already turned up "anomalous" magnetic spherules, steel shards, curious wires, and heaps of volcanic ash, but has not identified anything that is unambiguously extraterrestrial — or interstellar — at this point. However, Loeb is optimistic that the crew will identify pieces of Interstellar Meteor 1 (IM1), the mysterious half-ton object that struck Earth nearly a decade ago, which he thinks could be an artifact, or "technosignature," from an alien civilization...

The fireball that sparked the hunt smashed into the atmosphere on January 8, 2014, and was detected by NASA's Center for Near-Earth Object Studies (CNEOS), which keeps track of extraterrestrial impacts using a network of sensors around the world. Years later, Loeb and his student, Amir Siraj, concluded that the meteor's high velocity at impact suggested that it was interstellar in origin, a hypothesis that was ultimately supported by the United States Space Command using classified sensor data.
Today Loeb posted on Medium that "by now, we have 25 spherules from the site of the first recognized interstellar meteor," with a cumulative weight of about 30 milligrams — estimated to be one part in ten million of the original fireball's mass: The success of the Interstellar Expedition constitutes the first opportunity for astronomers to learn about interstellar space by using a microscope rather than a telescope. It opens the door for a new branch of observational astronomy.
Updates about the expedition are running on the Mega Screen in New York's Times Square, Motherboard reports. And Loeb writes that "If further analysis of the 50 milligrams retrieved from IM1's site will inform us that IM1's composition requires a technological origin, we will know that we are not alone."

He also shared an email that responded to his online diaries: I had a heart attack four weeks ago and am now in rehab. I read your IM1 diary every day and it always gives me new courage to face life. There are still so many things to discover and I want to live long enough to see some of them. I wish you and your team all the best.

New submitter ole_timer shares a report from Wired: TikTok to Huawei routers to DJI drones, rising tensions between China and the US have made Americans -- and the US government -- increasingly wary of Chinese-owned technologies. But thanks to the complexity of the hardware supply chain, encryption chips sold by the subsidiary of a company specifically flagged in warnings from the US Department of Commerce for its ties to the Chinese military have found their way into the storage hardware of military and intelligence networks across the West. In July of 2021, the Commerce Department's Bureau of Industry and Security added the Hangzhou, China-based encryption chip manufacturer Hualan Microelectronics, also known as Sage Microelectronics, to its so-called "Entity List," a vaguely named trade restrictions list that highlights companies "acting contrary to the foreign policy interests of the United States." Specifically, the bureau noted that Hualan had been added to the list for "acquiring and ... attempting to acquire US-origin items in support of military modernization for [China's] People's Liberation Army."

Yet nearly two years later, Hualan -- and in particular its subsidiary known as Initio, a company originally headquartered in Taiwan that it acquired in 2016 -- still supplies encryption microcontroller chips to Western manufacturers of encrypted hard drives, including several that list as customers on their websites Western governments' aerospace, military, and intelligence agencies: NASA, NATO, and the US and UK militaries. Federal procurement records show that US government agencies from the Federal Aviation Administration to the Drug Enforcement Administration to the US Navy have bought encrypted hard drives that use the chips, too. The disconnect between the Commerce Department's warnings and Western government customers means that chips sold by Hualan's subsidiary have ended up deep inside sensitive Western information networks, perhaps due to the ambiguity of their Initio branding and its Taiwanese origin prior to 2016. The chip vendor's Chinese ownership has raised fears among security researchers and China-focused national security analysts that they could have a hidden backdoor that would allow China's government to stealthily decrypt Western agencies' secrets. And while no such backdoor has been found, security researchers warn that if one did exist, it would be virtually impossible to detect it.

"If a company is on the Entity List with a specific warning like this one, it's because the US government says this company is actively supporting another country's military development," says Dakota Cary, a China-focused research fellow at the Atlantic Council, a Washington, DC-based think tank. "It's saying you should not be purchasing from them, not just because the money you're spending is going to a company that will use those proceeds in the furtherance of another country's military objectives, but because you can't trust the product." [...] The mere fact that so many Western government agencies are buying products that include chips sold by the subsidiary of a company on the Commerce Department's trade restrictions list points to the complexities of navigating the computing hardware supply chain, says the Atlantic Council's Cary. "At minimum, it's a real oversight. Organizations that should be prioritizing this level of security are apparently not able to do so, or are making mistakes that have allowed for these products to get into their environments," he says. "It seems very significant. And it's probably not a one-off mistake."

Researchers have discovered high concentrations of phosphorus in ice crystals emitted from Saturn's moon Enceladus, enhancing its potential to support life. The findings, based on data from NASA's Cassini spacecraft, suggest that Enceladus may possess the necessary elements for life. Reuters reports: The discovery was based on data collected by NASA's Cassini spacecraft, the first to orbit Saturn, during its 13-year landmark exploration of the gaseous giant planet, its rings and its moons from 2004 to 2017. The same team previously confirmed that Enceladus' ice grains contain a rich assortment of minerals and complex organic compounds, including the ingredients for amino acids, associated with life as scientists know it. But phosphorus, the least abundant of six chemical elements considered necessary to all living things -- the others are carbon, oxygen, hydrogen, nitrogen and sulphur -- was still missing from the equation until now.

"It's the first time this essential element has been discovered in an ocean beyond Earth," the study's lead author, Frank Postberg, a planetary scientist at the Free University in Berlin, said in a JPL press release. [...] One notable aspect of the latest Enceladus discovery was geochemical modeling by the study's co-authors in Europe and Japan showing that phosphorus exists in concentrations at least 100 times that of Earth's oceans, bound water-soluble forms of phosphate compounds. "This key ingredient could be abundant enough to potentially support life in Enceladus' ocean," said co-investigator Christopher Glein, a planetary scientist at Southwest Research Institute in San Antonio, Texas. "This is a stunning discovery for astrobiology." "Whether life could have originated in Enceladus' ocean remains an open question," Glein said.

NASA's Jet Propulsion Laboratory (JPL) has created the largest open-source archive of PDFs as part of DARPA's Safe Documents program, with the aim of improving internet security. The corpus consists of approximately 8 million PDFs collected from the internet. From a press release: "PDFs are used everywhere and are important for contracts, legal documents, 3D engineering designs, and many other purposes. Unfortunately, they are complex and can be compromised to hide malicious code or render different information for different users in a malicious way," said Tim Allison, a data scientist at JPL in Southern California. "To confront these and other challenges from PDFs, a large sample of real-world PDFs needs to be collected from the internet to create a shared, freely available resource for software experts." Building the corpus was no easy task. As a starting point, Allison's team used Common Crawl, an open-source public repository of web-crawl data, to identify a wide variety of PDFs to be included in the corpus -- files that are publicly available and not behind firewalls or in private networks. Conducted between July and August 2021, the crawl identified roughly 8 million PDFs.

Common Crawl limits downloaded data to 1 megabyte per file, meaning larger files were incomplete. But researchers need the entire PDF, not a truncated version, in order to conduct meaningful research on them. The file-size limit reduced the number of complete, untruncated files extracted directly from Common Crawl to 6 million. To get the other 2 million PDFs and ensure the corpus was complete, the JPL team re-fetched the truncated files using specialized software that downloaded the whole files from the incomplete PDFs' web addresses. Various metadata, such as the software used to create each PDF, was extracted and is included with the corpus. The JPL team also relied on free, publicly available geolocation software to identify the server location of the source website for each PDF. The complete data set totals about 8 terabytes, making it the largest publicly available corpus of its kind.

The corpus will do more than help researchers identify threats. Privacy researchers, for example, could study these files to determine how file-creation and editing software can be improved to better protect personal information. Software developers could use the files to find bugs in their code and to check if old versions of software are still compatible with newer versions of PDFs. The Digital Corpora project hosts the huge data archive as part of Amazon Web Services' Open Data Sponsorship Program, and the files have been packaged in easily downloadable zip files.

Microsoft will make it possible for users of its Azure Government cloud computing service, which include a variety of US agencies, to access artificial intelligence models from ChatGPT creator OpenAI. From a report: Microsoft, which is the largest investor in OpenAI and uses its technology to power its Bing chatbot, plans to announce Wednesday that Azure Government customers can now use two of OpenAI's large language models: The startup's latest and most powerful model, GPT-4, and an earlier one, GPT-3, via Microsoft's Azure OpenAI service.

The Redmond, Washington-based company plans Wednesday to release a blog post, viewed by Bloomberg, about the program, although its doesn't name specific US agencies expected to use the large language models at launch. The Defense Department, the Energy Department and NASA are among the federal government customers of Azure Government. The Defense Technical Information Center -- a part of the Defense Department that focuses on gathering and sharing military research -- will be experimenting with the OpenAI models through Microsoft's new offering, a DTIC official confirmed.

The international space station is equpped with four 39-foot blankets (11.8-meters), reports CBS News. The first one was delivered in December of 2000 — and now it's time for some changes: Two astronauts ventured outside the International Space Station Friday and installed the fifth of six roll-out solar array blankets — iROSAs — needed to offset age-related degradation and micrometeoroid damage to the lab's original solar wings.

Floating in the Quest airlock, veteran Stephen Bowen, making his ninth spacewalk, and crewmate Woody Hoburg, making his first, switched their spacesuits to battery power at 9:25 a.m. EDT, officially kicking off the 264th spacewalk devoted to ISS assembly and maintenance and the seventh so far this year. NASA is in the process of upgrading the ISS's solar power system by adding six iROSAs to the lab's eight existing U.S. arrays. The first four roll-out blankets were installed during spacewalks in 2021 and 2022. Bowen and Hoburg installed the fifth during Friday's spacewalk and plan to deploy the sixth during another excursion next Thursday.

The two new iROSAs were delivered to the space station earlier this week in the unpressurized trunk section of a SpaceX cargo Dragon. The lab's robot arm pulled them out Wednesday and mounted them on the right side of the station's power truss just inboard the starboard wings... As the station sailed 260 miles above the Great Lakes, the 63-foot-long solar array slowly unwound like a window shade to its full length. Well ahead of schedule by that point, the spacewalkers carried out a variety of get-ahead tasks to save time next week when they float back outside to install the second new iROSA.

They returned to the airlock and began re-pressurization procedures at 3:28 p.m., bringing the 6-hour three-minute spacewalk to a close. With nine spacewalks totaling 60 hours and 22 minutes under his belt, Bowen now ranks fifth on the list of the world's most experienced spacewalkers.
"Combined with the 95-kilowatt output of the original eight panels, the station's upgraded system will provide about 215,000 kilowatts of power."

In less than two years, NASA plans to have astronauts walking on the moon again — the first time in over half a century. "And one potential surprise could be detecting life on the moon," reports Space.com: New research suggests that future visitors to the lunar south pole region should be on the lookout for evidence of life in super-cold permanently shadowed craters — organisms that could have made the trek from Earth. Microbial life could potentially survive in the harsh conditions near the lunar south pole, suggested Prabal Saxena, a planetary researcher at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "One of the most striking things our team has found is that, given recent research on the ranges in which certain microbial life can survive, there may be potentially habitable niches for such life in relatively protected areas on some airless bodies," Saxena told Space.com.

Indeed, the lunar south pole may possess the properties that can enable survival and potentially even episodic growth of certain microbial life, Saxena said. "We're currently working on understanding which specific organisms may be most suited for surviving in such regions and what areas of the lunar polar regions, including places of interest relevant to exploration, may be most amenable to supporting life," he said. In work presented at a recent science workshop on the potential Artemis 3 landing sites, Saxena and study members reported that the lunar south pole may contain substantial surface niches that could be potentially habitable for a number of microorganisms.
While it's possible organic molecules from earth might have been hurled to the moon after a meteor impact, there's a much more likely possibility. A NASA organic geochemist on the study views humans as "the most likely vector, given the extensive data that we have about our history of exploration..." Especially if humans start visiting these temperate radiation-protected sites...

China is planning to deploy a constellation of satellites in orbit around the moon to create a radio telescope that would enable the study of radio waves longer than 33 feet, providing insights into the "Dark Ages" of the universe. Space.com reports: The array would consist of one "mother" satellite and eight mini "daughter" craft. The mother would process data and communicate with Earth, and the daughters would detect radio signals from the farthest reaches of the cosmos, Xuelei Chen, an astronomer at the China National Space Administration (CNSA), said at the Astronomy From the Moon conference held earlier this year in London. Putting such an array in orbit around the moon would be technically more feasible than building a telescope directly on the lunar surface, a venture that NASA and other space agencies are currently considering as one of the next big steps in astronomy.

"There are a number of advantages in doing this in orbit instead of on the surface because it's engineeringly much simpler," Chen said during the conference. "There is no need for landing and a deployment, and also because the lunar orbital period is two hours, we can use solar power, which is much simpler than doing it on the lunar surface, which, if you want to observe during the lunar night, then you have to provide the energy for almost 14 days." He added that this proposed "Discovering Sky at the Longest Wavelength," or Hongmeng Project, could orbit the moon as early as 2026.

A telescope on the moon, astronomers say, would allow them to finally see cosmic radiation in a part of the electromagnetic spectrum that is impossible to study from Earth's surface: radio waves longer than 33 feet (10 meters), or, in other words, those with frequencies below 30 megahertz (MHz). "If you are looking into the low-frequency part of the electromagnetic spectrum, you'll find that, due to strong absorption [by Earth's atmosphere], we know very little about [the region] below 30 megahertz," Chen said. "It's almost a blank part of the electromagnetic spectrum. So we want to open this last electromagnetic window of the universe."

The House of Representatives in the United States plans to hold a hearing to investigate claims made by a whistleblower former intelligence official, David Grusch, that the US government possesses "intact and partially intact" alien vehicles. The Guardian reports: "There will be oversight of that," Comer told NewsNation. "We plan on having a hearing." Comer said he had heard about Grusch's claims, but added: "I don't know anything about it." The timing of the hearing is not yet determined, but a source familiar with the matter said a date is expected to be announced in the next few weeks. Tim Burchett and Anna Paulina Luna, Republican members of Congress from Florida and Tennessee, respectively, will lead the oversight committee investigation.

Burchett is working closely with House oversight committee leaders to prepare for a hearing, the congressman's office said. The witness list for the hearing has not yet been set, so it is unclear whether Grusch will publicly testify before the oversight committee. "Congressman Burchett's office is working through logistics, including a witness list of the most credible witnesses and sources who would be able to speak openly at an unclassified hearing," a spokesperson said.

Austin Hacker, a spokesman for the committee, told the Guardian in a statement: "In addition to recent claims by a whistleblower, reports continue to surface regarding unidentified aerial phenomena. The House oversight committee is following these UAP reports and is in the early stages of planning a hearing," Hacker said in a statement. "The National Defense Authorization Act for 2022 created the All-Domain Anomaly Resolution Office which coordinates among the Department of Defense, the intelligence community, Nasa, and other federal agencies to study UAPs. Americans, who continue to fund this federal government work, expect transparency and meaningful oversight from Congress."

"A Boeing official said Thursday that the company was 'standing down' from an attempt to launch the Starliner spacecraft on July 21," reports Ars Technica, "to focus on recently discovered issues with the vehicle." Starliner's program manager said they'd spent last weekend investigating the problems, and "after internal discussions that included Boeing chief executive Dave Calhoun, the company decided to delay the test flight" carrying astronauts to the International Space Station. The issues seem rather serious to have been discovered weeks before Starliner was due to launch on an Atlas V rocket. The first involves "soft links" in the lines that run from Starliner to its parachutes. Boeing discovered that these were not as strong as previously believed. During a normal flight, these substandard links would not be an issue. But Starliner's parachute system is designed to land a crew safely in case one of the three parachutes fails. However, due to the lower failure load limit with these soft links, if one parachute fails, it's possible the lines between the spacecraft and its remaining two parachutes would snap due to the extra strain.

The second issue involves P-213 glass cloth tape that is wrapped around wiring harnesses throughout the vehicle. These cables run everywhere, and Nappi said there are hundreds of feet of these wiring harnesses. The tape is intended to protect the wiring from nicks. However, during recent tests, it was discovered that under certain circumstances possible in flight, this tape is flammable.
Thanks to xanthos (Slashdot reader #73,578) for sharing the article.

sciencehabit shares a report from Science Magazine: The truth may be out there about UFOs, or what the government currently calls "unidentified anomalous phenomena" (UAPs). But finding it will require collecting data that are more rigorous than the anecdotal reports that typically fuel the controversial sightings, according to a panel of scientists, appointed by NASA to advise the agency on the topic, that held its first public meeting [on Wednesday].

The 16-person panel, created last year at the behest of NASA Administrator Bill Nelson, is not itself evaluating UFO claims. Instead, it is advising NASA on how the agency can contribute to federal investigations that have been led by the Department of Defense (DOD) and intelligence agencies, says panel chair David Spergel, an astrophysicist and president of the Simons Foundation, who spoke to Science ahead of the meeting. "NASA is a public agency, an open agency, that encourages the use of the scientific method for looking at results." But science can only be done when there are data to work on, he adds. "You're not going to learn much from fuzzy pictures from the 1950s." So far, most "unidentified" phenomena flagged by the military have ended up being weather balloons, drones, camera glitches, or undisclosed military aircraft, Spergel says. "It's very unlikely there are space aliens that travel through space and use technology that looks remarkably like what we have right now." [...]

It remains to be seen whether NASA will devote any further funding to study UAPs beyond the $100,000 allocated for the panel, which will issue a report this summer. Many scientists would be reluctant to have existing funds steered away from more conventional lines of research in the search for signatures of life or extraterrestrial intelligence. As the panel meeting wound down, Spergel said no UAP so far demands the existence of extraterrestrials. "We have not seen the extraordinary yet." Most incidents end up being more mundane. Panel member Scott Kelly, a former NASA astronaut and naval aviator, recounted flying in an F-14 off the coast of Virginia, when his co-pilot swore that he saw a UAP. "We turned around," he said. "We went to go look at it. It turns out it was Bart Simpson, a balloon."

The Japanese space agency (JAXA) and NASA plan to launch a satellite made of wood in 2024. The Independent reports: The high durability of wood in space was recently tested and confirmed at the International Space Station (ISS) by an international group of scientists led by those from Kyoto University. Their experiments showed wood samples tested at the ISS for durability underwent minimal deterioration and maintained good stability. Preliminary inspection, including strength tests and crystal structural analyses, of the wood samples was also done once they were brought back to Earth from the ISS by Japanese astronaut Koichi Wakata.

Despite extreme conditions in space, including temperature changes and exposure to intense cosmic rays and dangerous solar particles for 10 months, tests found no changes in the samples, such as cracking, warping, peeling or surface damage, according to a recent Kyoto University statement. The retrieved wood specimens were tested and showed no deformation after space exposure and also did not undergo any mass change before and after space exposure, scientists said.

The international research group has determined that the satellite LignoSat, slated to be jointly launched in 2024 by Nasa and Japan's space agency Jaxa, will likely use Magnolia wood -- "Hoonoki" in Japanese. Magnolia, researchers said, has relatively high workability, dimensional stability and overall strength, making its properties ideal for the mission. Wood also has some benefits compared to complex alloys used in space vehicles, as it is environmentally friendly, easier to produce and can be disposed off better at the end of a satellite's life. Such wooden satellites may also be designed to completely burn up on re-entry into the atmosphere and even if small fragments did survive, they may decompose easily.

A SpaceX capsule carrying a former NASA astronaut and three paying customers returned from the International Space Station, marking the conclusion of a historic weeklong mission for the crew. From a report: The Crew Dragon spacecraft departed the space station Tuesday morning and the crew spent nearly 12 hours in orbit as the capsule maneuvered back toward Earth. After a fiery reentry, the Crew Dragon and passengers made a safe splashdown off the coast of Panama City, Florida, in the Gulf of Mexico at 11:04 p.m. ET. This mission, dubbed Axiom Mission 2, or AX-2, launched from Florida on May 21. AX-2 was put together by the Houston-based company Axiom Space and marked the second all-private mission to the orbiting outpost, meaning solely commercial companies, rather than a government agency, have been leading the mission.

This mission was also a milestone in the history of spaceflight as stem cell researcher Rayyanah Barnawi became the first woman from Saudi Arabia to travel to space. The AX-2 mission is one in a lineup of commercial missions designed to spur private sector participation in spaceflight -- particularly in low-Earth orbit, where the International Space Station orbits. Former NASA astronaut Peggy Whitson, 63, led the AX-2 crew. Whitson, now an Axiom Space employee, also became the first woman to command a private spaceflight. One of the three paying customers joining Whitson was John Shoffner, an American who made his fortune in the international telecom business and founded the hardware company Dura-Line Corp. Saudi Arabia also paid to fly two of its citizens: Barnawi and Ali AlQarni, a fighter pilot in the Royal Saudi Air Force.

During the mission, Barnawi led stem cell research suited for the microgravity environment aboard the space station. The orbiting laboratory has long been a key venue for various scientific experiments, as the lack of gravity can give researchers a better fundamental understanding of the topic at hand. Barnawi and AlQarni also engaged in outreach projects, including testing out a kite in microgravity and capturing video for viewers back home. The AX-2 crew spent about eight days working alongside astronauts representing NASA, Russia's Roscomos space agency and the United Arab Emirates Space Agency aboard the space station, though they operated on different schedules. The AX-2 crew worked through a lineup of more than 20 investigations and science projects -- including stem cell and other biomedical research. "Late tonight, at 11:02 pm local time in California (06:02 UTC Wednesday), SpaceX has a chance to reach 200 successful launches [of the Falcon 9 rocket] with a Starlink mission lifting off from Vandenberg Space Force Base," reports Ars Technica. "Such a performance is in uncharted territory for any orbital rocket, ever. [...] SpaceX is setting itself up to double the record for the number of consecutive successes by an orbital rocket."

You can view a livestream of the launch here.

The Mars helicopter 'Ingenuity' recently completed its 47th, 48th, and 49th flight, NASA reports on the blog for its Mars rover 'Perseverance'. That rover is making a "long ascent" up the delta in Mars' Jezero crater, "an area where scientists surmise that, billions of years ago, a river once flowed into a lake.

On its 47th flight, Ingenuity attempted "tactical and scientific scouting" for the rover, but "just narrowly missing the main area of interest." But then... Ingenuity's 48th flight produced a treasure trove of aerial images showing the exact area of interest at a resolution several orders of magnitude better than anything prior. All of these images were downlinked to Earth and provided to rover planners and scientists a full two weeks before the rover would reach this area... [T]he team chose to send the helicopter farther up the delta rather than perform additional scouting flights in the region... The Guidance Navigation and Control team once again managed to push the flight envelope with a 16-meter vertical popup at the end of the flight. At the peak, Ingenuity snapped the highest suborbital picture taken of the Martian surface since landing...

That downlink was the last time the team would hear from the helicopter for an agonizingly long time. Eager to continue up the delta, the team tried and failed to uplink the instructions for Flight 50 several times. Sol after sol, the helicopter remained elusive. Each time, the downlinked telemetry from the Helicopter Base Station (HBS) on the rover would come back showing no radio sign of the helicopter... When the rover emerged from the communications shadow on its way to Foel Drygarn and the helicopter was still nowhere to be found, the situation began to generate some unease... In more than 700 sols operating the helicopter on Mars, not once had we ever experienced a total radio blackout. Even in the worst communications environments, we had always seen some indication of activity...

Finally, on Sol 761, nearly a week after our first missed check-in, our communications team observed a single, lonely radio ACK (radio acknowledgement) at 9:44 LMST (Local Mean Solar Time), exactly the time when we'd expect to see the helicopter wakeup. Another single ACK at the same time on Sol 762 confirmed that the helicopter was indeed alive, which came as a welcome relief for the team. Ultimately, this first-of-its-kind communications blackout was a result of two factors. First, the topology between the rover and the helicopter was very challenging for the radio used by Ingenuity. In addition to the aforementioned communications shadow, a moderate ridge located just to the southeast of the Flight 49 landing site separated the helicopter from the rover's operational area. The impact of this ridge would only abate once the rover had gotten uncomfortably close to the helicopter. Second, the HBS antenna is located on the right side of the rover, low enough to the deck to see significant occlusion effects from various part of the rover...

Relying on the helicopter's onboard preflight checks to ensure vehicle safety and banking on solid communications from the rover's imminent proximity, the team uplinked the flight plan. As commanded, Ingenuity woke up and executed its 50th flight on the red planet, covering over 300 meters and setting a new altitude record of 18 m.

The rover had closed to a mere 80 meters by the time the helicopter lifted off in the Martian afternoon Sun.
And Flight 51 happened 9 days later...