An anonymous reader quotes a report from CNN: The Perseverance rover successfully drilled into a Martian rock on Thursday, creating an intact core sample that could one day be returned to Earth. But NASA wants better images to make sure the sample is safely in the tube before it's sealed up and stowed on the rover. So far, data sent back by the rover and initial images suggest an intact sample was inside the tube after Perseverance drilled into a rock selected by the mission's science team. After the initial images were taken, the rover vibrated the drill bit and tube for five one-second bursts to clear both of any residual material from outside of the tube. It's possible that this caused the sample to slide down further inside the tube.

The next images taken after this were "inconclusive due to poor sunlight conditions," according to the agency. Perseverance will use its cameras to take more images under better lighting conditions before conducting the next steps of the sampling process. The extra step of taking additional images before sealing and stowing the sample tube was added after Perseverance attempted to drill into another rock target on August 5. During that attempt, the rock crumbled and there was no sample present in the tube once it was stowed.

Perseverance is currently exploring the Citadelle location in Jezero Crater, which -- billions of years ago -- was once the site of an ancient lake. The rover's specific target was a rock called Rochette, which is about the size of a briefcase and is part of a half-mile ridgeline of rock outcrops and boulders. The mission team should receive more images of what's inside the sample tube by September 4. If images taken while the sun is at a better angle don't help the team determine whether a sample is present, the tube will be sealed and the rover will measure its volume. If Perseverance is able to successfully collect samples from Mars, they will be returned to Earth by future missions -- and they could reveal if microbial life ever existed on Mars.

Nicholas Schmidle writes via the New Yorker: On July 11th, nearly a minute into the rocket trip carrying Richard Branson, the British billionaire, to space, a yellow caution light appeared on the ship's console. The craft was about twenty miles in the air above the White Sands Missile Range, in New Mexico, and climbing, traveling more than twice the speed of sound. But it was veering off course, and the light was a warning to the pilots that their flight path was too shallow and the nose of the ship was insufficiently vertical. If they didn't fix it, they risked a perilous emergency landing in the desert on their descent. [...] Virgin Galactic's space vehicle is unique among its competitors. Whereas SpaceX and Blue Origin operate traditional, vertical-launch rockets that are automated by engineers, Virgin Galactic uses a piloted, winged rocket ship. Every test flight is crewed, which makes each one a matter of life and death. The success of Virgin Galactic's program, therefore, will ultimately depend on its pilots, high-calibre but nonetheless fallible, making the right decisions and adjustments in specific moments -- like when a yellow caution light comes on.

Alerts on the console can be triggered by any number of issues. On the July 11th flight, with Branson on board, it was a trajectory problem, or what's known as the "entry glide cone." The ship uses rocket power to get into space, but glides back to Earth and lands on a runway, like the space shuttle would do. This method, mimicking water circling a drain, enables a controlled descent. But the ship must begin its descent within a specified, imaginary "cone" to have enough glide energy to reach its destination. The pilots basically weren't flying steeply enough. Not only was the ship's trajectory endangering the mission, it was also imperiling the ship's chances of staying inside its mandated airspace.

The rocket motor on Virgin Galactic's ship is programmed to burn for a minute. On July 11th, it had a few more seconds to go when a red light also appeared on the console: an entry glide-cone warning. This was a big deal. I once sat in on a meeting, in 2015, during which the pilots on the July 11th mission -- Dave Mackay, a former Virgin Atlantic pilot and veteran of the U.K.'s Royal Air Force, and Mike Masucci, a retired Air Force pilot -- and others discussed procedures for responding to an entry glide-cone warning. C. J. Sturckow, a former marine and nasa astronaut, said that a yellow light should "scare the shit out of you," because "when it turns red it's gonna be too late." Masucci was less concerned about the yellow light but said, "Red should scare the crap out of you." Based on pilot procedures, Mackay and Masucci had basically two options: implement immediate corrective action, or abort the rocket motor. According to multiple sources in the company, the safest way to respond to the warning would have been to abort. (A Virgin Galactic spokesperson disputed this contention.)

Aborting at that moment, however, would have dashed Branson's hopes of beating his rival Bezos, whose flight was scheduled for later in the month, into space. Mackay and Masucci did not abort. Whether or not their decision was motivated by programmatic pressures and the hopes of their billionaire bankroller sitting in the back remains unclear. Virgin Galactic officials told me that the firm's top priority is the safety of its crew and passengers. Branson, however, is known for his flamboyance and showmanship. [...] Fortunately for Branson and the three other crew members in the back, the pilots got the ship into space and landed safely. But data retrieved from Flightradar24 shows the vehicle flying outside its designated airspace. An F.A.A. spokesperson confirmed that Virgin Galactic "deviated from its Air Traffic Control clearance" and that an "investigation is ongoing." Virgin Galactic described the July 11th flight as "a safe and successful test flight that adhered to our flight procedures and training protocols." The statement added, "When the vehicle encountered high altitude winds which changed the trajectory, the pilots and systems monitored the trajectory to ensure it remained within mission parameters. Our pilots responded appropriately to these changing flight conditions exactly as they have been trained and in strict accordance with our established procedures."

Mr.Fork shares a report from Live Science: Russian cosmonauts discovered cracks on the Zarya module of the International Space Station (ISS) and are concerned that the fissures could spread over time, a senior space official reported on Monday. "Superficial fissures have been found in some places on the Zarya module," Vladimir Solovyov, chief engineer of rocket and space corporation Energia, told RIA news agency, according to Reuters. "This is bad and suggests that the fissures will begin to spread over time." The Zarya module, also called the Functional Cargo Block, was the first component of the ISS ever launched, having blasted into orbit on Nov. 20, 1998, according to NASA. Solovyov recently stated that the ISS is beginning to show its age and warned that there could potentially be an "avalanche" of broken equipment after 2025, according to Reuters.

Earlier this month Jeff Bezos' Blue Origin sued NASA over a moon lander contract awarded to SpaceX.

Now Mashable reports that "America's next trip to the moon may suddenly be delayed a bit thanks to...PDFs?" A U.S. federal judge has granted the Department of Justice a week-long extension in its lawsuit with Jeff Bezos' space company Blue Origin. The reason? Large PDF files...

According to the DOJ, there is more than 7 GB of data related to the case. However, the U.S. Court of Federal Claims' online system allows for only files of up to 50 MB in size to be uploaded. This all amounts to "several hundred" PDFs, including other file formats that would be converted to PDFs. The DOJ says it also sought to convert multiple separate documents into individual PDF batches but explained that those larger files could cause the upload system to crash. "We have tried several different ways to create 50-megabyte files for more efficient filing, all without success thus far," the DOJ said.

Instead of using the online file system, the U.S. government will transfer the documents for the case to DVDs.
Futurism reports the situation was exacerbated "because the agency staff that could have fixed the issue were at the 36th Annual Space Symposium last week."

On Twitter, space reporter Joey Roullete notes the judge's ruling means an additional one-week stay before the awarding of SpaceX's contract..

Or, as Mashable puts it, "Space exploration is currently on hold thanks to a lawsuit and a slew of pesky PDF files."

Eric Niiler writes via Wired: The landscape of Titan, Saturn's largest moon, is both familiar and strange. Like Earth, Titan has rivers, lakes, clouds, and falling raindrops, as well as mountains of ice and a thick atmosphere. But instead of water, Titan's chemical cycle is composed of liquid methane, an organic molecule made from one carbon and four hydrogen atoms. Researchers believe this swirling mixture of methane, combined with the moon's nitrogen-laden atmosphere, surface water ice, and maybe some energy from either a volcano or a meteor impact, might have been the perfect recipe to create some kind of simple life form. [...] Now, A researcher has recreated Titan's environment in a small glass cylinder and mixed organic chemicals under the same temperature and pressure conditions found on that moon. Organic molecules that are liquid on Earth -- such as methane and benzene -- become solid icy mineral crystals on Titan because it's so cold, sometimes down to -290 Fahrenheit, according to Tomce Runcevski, an assistant professor of chemistry at Southern Methodist University, and the principal investigator on a study presented this week at the American Chemical Society meeting.

In a series of experiments, Runcevski took tiny glass tubes, sucked the air out of them with a pump, and added water ice. Then, one at a time, he added nitrogen, methane, its chemical relative ethane, and other organic compounds. Each time, he varied the composition of the chemical mixture inside the glass cylinders to see what would happen. He next applied pressure -- equivalent to about 1.45 times Earth's atmosphere -- and reduced the temperature by surrounding the vials with extremely cold air. [...] Under that moon's atmospheric pressure and temperature, he found that two organic molecules abundant on Titan and toxic to humans here on Earth -- acetonitrile and propionitrile -- become a single crystalline form. On Titan, these two molecules are formed by the combination of nitrogen and methane, plus energy from the sun, Saturn's magnetic field, and cosmic rays. Acetonitrile and propionitrile start as a gas in the atmosphere, then condense into aerosols, and then rain down onto the moon's surface and become chunks of solid minerals in several forms.

It's the first time that these two chemicals have been combined into a crystal shape on Earth under the conditions present on Titan. Another important finding is that the outer facet of the crystal also has a slight electric charge, or polarity, on its surface. That surface charge can attract other molecules such as water -- which would be necessary to form the building blocks of carbon-based life. This new experiment doesn't prove that there's life on Titan, but it means that researchers can discover new things about its weird, frigid surface environment even before the NASA Dragonfly spacecraft lands there.

NASA hopes that commercial space stations will orbit Earth once the International Space Station eventually retires, NASA Administrator Bill Nelson said today at the 36th Space Symposium. Space.com reports: The space station, which was completed in 2011, could retire as soon as 2024. However, today, Nelson revealed that he expects the orbiting lab to last to 2030 and that NASA hopes it will be replaced by commercial labs in orbit. "We expect to expand the space station as a government project all the way to 2030. And we hope it will be followed by commercial stations," Nelson said during a "Heads of Agency" panel alongside other space leaders from around the world.

Now, while NASA hopes for commercial space stations to take over as the International Space Station nears the end of its tenure, China has already begun building its own space station. And, as NASA is prohibited from engaging in bilateral activities with China, this move by China is more competitive than collaborative. "Unfortunately, I believe we're in a space race with China," Nelson said during the panel. "I'm speaking on behalf of the United States, for China to be a partner. I'd like China to do with us as a military adversary, like Russia has done ... I would like to try to do that. But China is very secretive, and part of the civilian space program is that you've got to be transparent." Nelson pointed to Russia's longstanding history as a collaborator alongside NASA in space, despite ongoing political divides back on Earth.

schwit1 writes: Jeff Bezos might have felt triumphant when he rocketed toward the edge of space last month, but apparently the same can't be said about other employees at Blue Origin. On Friday, CNBC was first to report that over a dozen engineers had left Bezos's company in recent weeks, with some departing for high-ranking roles at rival spaceflight outfits.

Among the major names that departed Blue Origin were Nitin Arora -- the lead engineer on Blue Origin's lunar lander program -- and Lauren Lyons, who announced earlier this month that she'd taken on a role as the Chief Operating Officer at Firefly Aerospace. Arora, meanwhile, said in a LinkedIn post last week that he'd taken a role at SpaceX. Fox Business confirmed that other prominent exits from the company included ex-NASA astronaut Jeff Ashby, along with Steve Bennet, who helped helm the New Shepard launch program.

Nasa is delaying a spacewalk at the International Space Station because of a medical issue involving one of its astronauts. From a report: Officials announced the postponement on Monday, less than 24 hours before Mark Vande Hei was supposed to float outside. Vande Hei was dealing with "a minor medical issue," officials said. It was not an emergency, they noted, but did not provide any further details. Vande Hei, 54, a retired army colonel, has been at the space station since April and is expected to remain there until next spring for a one-year mission. This is his second station stay.

"In the long-running TV show Doctor Who, aliens known as time lords derived their power from the captured heart of a black hole, which provided energy for their planet and time travel technology," writes Science magazine.

"The idea has merit, according to a new study."

Slashdot reader sciencehabit quotes their report: Researchers have shown that highly advanced alien civilizations could theoretically build megastructures called Dyson spheres around black holes to harness their energy, which can be 100,000 times that of our Sun. The work could even give us a way to detect the existence of these extraterrestrial societies...

Black holes are typically thought of as consumers rather than producers of energy. Yet their huge gravitational fields can generate power through several theoretical processes. These include the radiation emitted from the accumulation of gas around the hole, the spinning "accretion" disk of matter slowly falling toward the event horizon, the relativistic jets of matter and energy that shoot out along the hole's axis of rotation, and Hawking radiation—a theoretical way that black holes can lose mass, releasing energy in the process.

From their calculations, researchers concluded that the accretion disk, surrounding gas, and jets of black holes can all serve as viable energy sources. In fact, the energy from the accretion disk alone of a stellar black hole of 20 solar masses could provide the same amount of power as Dyson spheres around 100,000 stars, the team will report next month in the Monthly Notices of the Royal Astronomical Society. Were a supermassive black hole harnessed, the energy it could provide might be 1 million times larger still.

If such technology is at work, there may be a way to spot it. According to the researchers, the waste heat signal from a so-called "hot" Dyson sphere—one somehow capable of surviving temperatures in excess of 3000 kelvin, above the melting point of known metals—around a stellar mass black hole in the Milky Way would be detectible at ultraviolet wavelengths. Such signals might be found in the data from various telescopes, including NASA's Hubble Space Telescope and Galaxy Evolution Explorer.

A new paper suggests Saturn's core is more like a fluid than a solid, and makes up more of the planet's interior than we thought. From a report: With its massive rings stretching out 175,000 miles in diameter, Saturn is a one-of-a-kind planet in the solar system. Turns out its insides are pretty unique as well. A new study published in Nature Astronomy on Monday suggests the sixth planet from the sun has a "fuzzy" core that jiggles around. It's quite a surprising find. "The conventional picture for Saturn or Jupiter's interior structure is that of a compact core of rocky or icy material, surrounded by a lower-density envelope of hydrogen and helium," says Christopher Mankovich, a planetary scientist at Caltech and coauthor of the new study, along with his colleague Jim Fuller.

What Mankovich and Fuller glimpsed "is essentially a blurred-out version of that conventional structure." Instead of seeing a tidy boundary dividing the heavier rocks and ice from the lighter elements, they found that the core is oscillating so that there is no single, clear separation. This diffuse core extends out to about 60% of Saturn's radius -- a huge leap from the 10 to 20% of a planet's radius that a traditional core would occupy. One of the wildest aspects of the study is that the findings did not come from measuring the core directly -- something we've never been able to do. Instead, Mankovich and Fuller turned to seismographic data on Saturn's rings first collected by NASA's Cassini mission, which explored the Saturnian system from 2004 to 2017.

"Saturn essentially rings like a bell at all times," says Mankovich. As the core wobbles, it creates gravitational perturbations that affect the surrounding rings, creating subtle "waves" that can be measured. When the planet's core was oscillating, Cassini was able to study Saturn's C ring (the second block of rings from the planet) and measure the small yet consistent gravitational "ringing" caused by the core. Mankovich and Fuller looked at the data and created a model for Saturn's structure that would explain these seismographic waves -- and the result is a fuzzy interior. "This study is the only direct evidence for a diffuse core structure in a fluid planet to date," says Mankovich.

Jeff Bezos' space company Blue Origin brought its fight against NASA's Moon program to federal court on Monday, doubling down on accusations that the agency wrongly evaluated its lunar lander proposal. From a report: The complaint escalates a monthslong crusade by the company to win a chunk of lunar lander funds that was only given to its rival, Elon Musk's SpaceX and comes weeks after Blue Origin's first protest over the Moon program was squashed by a federal watchdog agency. Now in court, Blue Origin's challenge could add another pause to SpaceX's contract and a new lengthy delay to NASA's race to land astronauts on the Moon by 2024.

Blue Origin's complaint, filed with the US Court of Federal Claims, was shrouded behind a protective order. The company is broadly challenging NASA's decision to pick SpaceX for the lunar lander award, and "more specifically ... challenges NASA's unlawful and improper evaluation of proposals submitted under the HLS Option A BAA," according to its request to file its complaint under seal. Blue Origin was one of three firms vying for a contract to land NASA's first astronauts on the Moon since 1972. In April, NASA shelved the company's $5.9 billion proposal of its Blue Moon landing system and went with SpaceX's $2.9 billion Starship proposal instead, opting to pick just one company for the project after saying it might pick two. Limited funding from Congress only allowed one contract, NASA has argued.

Remember that small leak on the International Space Station discovered in 2018 that was traced to a Russian module and apparently made by a drill bit? (Implicating the technicans that built the module on earth, Ars Technica wrote "There is evidence that a technician saw the drilling mistake and covered the hole with glue, which prevented the problem from being detected...")

It's being revisited in the aftermath of a more recent incident involving Russia's Nauka science module to the International Space Station. (A software glitch after launch had required two course corrections for its rocket, and then while docking in space the module mistakenly fired its thrusters, causing the space station to briefly loss control, as well as communication with earth for 11 minutes.) Russia "is furious at what it says is unfair criticism of its space program," notes Futurism.com.

In response, Russia's state-owned news agency TASS has presented an anonymous interview with someone said to be a "high ranking" official at their space agency suggesting that the 2018 drill hole could've been caused by an emotionally unstable NASA flight engineer onboard the space station. The state-owned agency's story claims this flight engineer had discovered a blood clot in their jugular vein, and could've decided their return to earth for medical treatment might be expedited by sabotaging Russia's module. The problem with this story? Space.com reports: NASA officials knew the precise locations of the U.S. astronauts before the leak occurred and at the moment it began, thanks to space station surveillance. The video footage indicated that none of the U.S. astronauts on the station were near the Russian segment where the Soyuz vehicle was docked.
So Russia's state-owned news agency TASS now suggests that NASA could've tampered with that video to cover-up sabotage by NASA's astronauts — and points out that they weren't allowed to administer lie-detecting polygraph tests to those astronauts.

Asked to comment on the "unstable astronaut" theory, NASA's human spaceflight chief said they "did not find this accusation credible."

Ars Technica calls Russia's claims "extraordinarily defamatory."

Boeing's Starliner astronaut capsule won't be launching to the International Space Station until it's gone through "deeper-level troubleshooting" to fix an issue with stuck propulsion system valves, according to a press release from the company. That troubleshooting means removing the capsule from the Atlas V rocket it's been coupled to and bringing it back to Boeing's facility. The Verge reports: The spacecraft's initial launch attempt late last month was scrubbed hours before liftoff after engineers noticed a group of fuel valves in the Starliner's propulsion section weren't positioned as programmed. That valve issue, whose cause remains a mystery, is the latest engineering predicament to curse Starliner nearly two years after the capsule failed its first attempt to reach the space station in 2019. With a clear fix to the valve issue still elusive, having to take Starliner back to the hangar will push Boeing's plans to launch this month off the table, and a logjam of other scheduled flights could extend the delay by several months.

According to Boeing VP John Vollmer, the company will "continue to work the issue from the Starliner factory and have decided to stand down for this launch window to make way for other national priority missions." The new launch date will have to be jointly decided by NASA, Boeing, and the United Launch Alliance after the issue with the valves has been found and fixed. Boeing has said software isn't to blame for Starliner's new valve problem, and indicated in past statements that it's a more complex hardware issue.

Despite working on next-generation suits for years, they won't be ready until 2025 at the earliest, an inspector general determined. From a report: Ever since the White House directed NASA to return astronauts to the moon by 2024 as part of its Artemis program, there have been all sorts of daunting challenges: The rocket the space agency would use has suffered setbacks and delays; the spacecraft that would land astronauts on the surface is not yet completed and was held up by the losing bidders; and Congress hasn't come through with the funding NASA says is necessary. But another reason the 2024 goal may not be met is that the spacesuits needed by the astronauts to walk on the lunar surface won't be ready in time and the total development program, which ultimately will produce just two flight-ready suits, could cost more than $1 billion.

The NASA Inspector General said in a report Tuesday that the suits have been delayed by almost two years because of funding shortfalls, impacts from the coronavirus pandemic and technical challenges. As a result, the government watchdog concluded that the suits would not be ready until 2025 at the earliest and that "a lunar landing in late 2024 as NASA currently plans is not feasible." NASA has been working on next-generation spacesuits, which act as mini spaceships that protect the astronauts from the vacuum of space, for 14 years, the IG said. In 2016, NASA decided to consolidate two spacesuit designs into a single program that it would oversee. By 2017, the agency had spent $200 million and since then has spent an additional $220 million, the IG found. While it took the program in-house, parts for the suits are still supplied by 27 contractors.

NASA's OSIRIS-REx spacecraft has been orbiting an asteroid called Bennu for more than two years to fine-tune the agency's existing models of its trajectory. "As a result, scientists behind new research now say they're confident that the asteroid's total impact probability through 2300 is just 1 in 1,750," reports Space.com. From the report: Estimates produced before OSIRIS-REx arrived at the space rock tallied the cumulative probability of a Bennu impact between the years 2175 and 2199 at 1 in 2,700, according to NASA. While a slightly higher risk than past estimates, it represents a minuscule change in an already minuscule risk, NASA said. Technically, that's a small increase in risk, but the scientists behind the new research say they aren't worried about a potential impact. And besides, the lessons the research offers for asteroid trajectory calculation could reduce concerns about potential impacts by other asteroids more than enough to compensate.

"The impact probability went up just a little bit but it's not a significant change, the impact probability is pretty much the same," lead author Davide Farnocchia, who works at NASA's Center for Near Earth Object Studies in California, said during a news conference held Wednesday (Aug. 11). "I think that, overall, the situation has improved."

Instead of having AI in a self-driving car decide whether to kill its driver or pedestrians, the Washington Post reports there's a new philosophy gaining traction: Why not stop cars from getting in life-or-death situations in the first place? (Alternate URL): After all, the whole point of automated cars is to create road conditions where vehicles are more aware than humans are, and thus better at predicting and preventing accidents. That might avoid some of the rare occurrences where human life hangs in the balance of a split-second decision... The best way to kill or injure people probably isn't a decision you'd like to leave up to your car, or the company manufacturing it, anytime soon. That's the thinking now about advanced AI: It's supposed to prevent the scenarios that lead to crashes, making the choice of who's to die one that the AI should never have to face.

Humans get distracted by texting, while cars don't care what your friends have to say. Humans might miss objects obscured by their vehicle's blind spot. Lidar can pick those things up, and 360 cameras should work even if your eyes get tired. Radar can bounce around from one vehicle to the next, and might spot a car decelerating up ahead faster than a human can... [Serial entrepreneur Barry] Lunn is the founder and CEO of Provizio, an accident-prevention technology company. Provizio's secret sauce is a "five-dimensional" vision system made up of high-end radar, lidar and camera imaging. The company builds an Intel vision processor and Nvidia graphics processor directly onto its in-house radar sensor, enabling cars to run machine-learning algorithms directly on the radar sensor. The result is a stack of perception technology that sees farther and wider, and processes road data faster than traditional autonomy tech, Lunn says. Swift predictive analytics gives vehicles and drivers more time to react to other cars.

The founder has worked in vision technology for nearly a decade and has previously worked with NASA, General Motors and Boeing under the radar company Arralis, which Lunn sold in 2017. The start-up is in talks with big automakers, and its vision has a strong team of trailblazers behind it, including Scott Thayer and Jeff Mishler, developers of early versions of autonomous tech for Google's Waymo and Uber... Lunn thinks the auto industry prematurely pushed autonomy as a solution, long before it was safe or practical to remove human drivers from the equation. He says AI decision-making will play a pivotal role in the future of auto safety, but only after it has been shown to reduce the issues that lead to crashes. The goal is the get the tech inside passenger cars so that the system can learn from human drivers, and understand how they make decisions before allowing the AI to decide what happens in specified instances.

Friday the Perseverance rover on Mars made its first attempt to collect a rock sample and seal it in a tube, reports NASA. But unfortunately, the data "indicate that no rock was collected during the initial sampling activity..."

"The sampling process is autonomous from beginning to end," said Jessica Samuels, the surface mission manager for Perseverance at NASA's Jet Propulsion Laboratory in Southern California. "One of the steps that occurs after placing a probe into the collection tube is to measure the volume of the sample. The probe did not encounter the expected resistance that would be there if a sample were inside the tube."

The Perseverance mission is assembling a response team to analyze the data. One early step will be to use the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) imager - located at the end of the robotic arm - to take close-up pictures of the borehole. Once the team has a better understanding of what happened, it will be able to ascertain when to schedule the next sample collection attempt. "The initial thinking is that the empty tube is more likely a result of the rock target not reacting the way we expected during coring, and less likely a hardware issue with the Sampling and Caching System," said Jennifer Trosper, project manager for Perseverance at JPL
"Mars keeps surprising us," adds the rover's Twitter feed. "We're working through this new challenge. More to come."

Space.com points out this wasn't a make-or-break moment for the rover, since it's still carrying 42 more sampling tubes. And the plan has always been to leave the sample tubes on the surface of Mars, where they'll be retrieved later by future Mars missions.

An anonymous reader quotes a report from Interesting Engineering: The U.S. Air Force joins a group of venture capital firms in making a $60 million investment in Hermeus, a Georgia-based startup that is striving to make the world's first reusable hypersonic aircraft, a press statement reveals. The new contract, awarded on July 30, sets ambitious objectives for Hermeus, to be accomplished over the next three years. These include the building of three prototypes of the company's Quarterhorse aircraft and the testing of its full-scale reusable hypersonic propulsion system. If all goes to plan, the Quarterhorse passenger aircraft will be capable of flying at a staggering Mach 5 speeds, starting at 3836 mph (6174 km/h). By comparison, NASA's new supersonic jet, the X-59, will fly at Mach 1.5 and reach top speeds of 990 mph.

As Hermeus' aircraft will eventually be able to fly five times the speed of sound, it will be capable of traveling from New York to London in only 90 minutes -- instead of seven hours it typically takes today's commercial airliners. In order to reach those speeds, Hermeus is developing a proprietary turbine-based combined cycle (TBCC) engine, based on the GE J85 turbojet engine used for a variety of high-speed aircraft including Virgin Galactic's White Knight carrier aircraft and Boom Supersonic's prototype XB-1 aircraft. The first Quarterhorse prototype is set to be unmanned -- much in the same way that Virgin Galactic's first space plane missions were uncrewed, the earliest flight tests will not be piloted so as to eliminate the risk to human life and to allow the company to start its flight testing earlier. According to a 2020 report by Aviation International News, Hermeus has already built and tested a small-scale hypersonic engine prototype and it is now working on a full-scale engine demonstrator of its TBCC engine.

Netflix will stream a documentary next month which will follow the story of the world's first private all-civilian space orbit. Sky News reports: The group will board a SpaceX capsule next month and spend three days orbiting the Earth, becoming Netflix's first documentary "to cover an event in near real-time." The privately chartered flight will be commanded, funded and led by 38-year-old billionaire Jared Isaacman, and aim to support St Jude Children's Research Hospital to the tune of $200 million. He will be joined on board by Sian Proctor, a geoscientist and former NASA candidate, Christopher Sembroski, a US Airforce veteran, and Hayley Arceneaux, a doctor's assistant at St Jude and childhood cancer survivor.

The group will apparently reach a higher altitude than the International Space Station as they orbit the planet in the SpaceX Dragon capsule, dubbed Inspiration4. The quick-turnaround documentary will be made in five parts, with the first two premiering on 6 September. Viewers have been promised behind the scenes access of the mission -- from their selection, to footage from inside the spacecraft while it orbits Earth.

The launch of Boeing's Starliner crew capsule on an unpiloted test flight to the International Space Station was scrubbed Tuesday because of an undisclosed technical issue. Mission managers told the launch team to recycle for another attempt Wednesday at 12:57 p.m. ET, weather permitting. From a report: The launching atop a United Launch Alliance Atlas 5 rocket initially was planned for last Friday, but NASA ordered a delay while Russian space station engineers resolved problems with a newly arrived laboratory module. Over the weekend, the Starliner launch was reset for Tuesday. Forecasters monitoring Florida's typically stormy summer afternoon weather predicted a 60% chance of acceptable conditions then lowered the odds to 50-50. The team pressed ahead with fueling, but around 10:30 a.m., Boeing confirmed a scrub, tweeting, "We're confirming today's #Starliner Orbital Flight Test-2 launch is scrubbed. More details soon."

The Starliner flight marks a major milestone for Boeing and NASA as the agency transitions from hitching rides aboard Russian Soyuz spacecraft to fielding commercial crew ships built by Boeing and SpaceX. SpaceX, under a $2.6 billion NASA contract, launched its Crew Dragon spacecraft on a successful unpiloted test flight in 2019 and a piloted test flight last year. Since then, the California rocket builder has launched two operational flights to the space station carrying two long-duration crews to the outpost.