NASA

SpaceX: Starship Will Be Going To the Moon, With Or Without NASA (behindtheblack.com) 110

schwit1 shares a report from Behind the Black: SpaceX is going to land this spaceship manned on the Moon, whether or not NASA's SLS and Orion are ready. And even if those expensive, cumbersome, and poorly designed boondoggles are ready for those first two Artemis landings, SpaceX is likely to quickly outmatch them with numerous other private missions to the Moon, outside of NASA. It has the funds to do it, and it knows it has the customers willing to buy the flights. The news comes from a detailed update SpaceX released today on the Starship lunar lander. Here's the section where SpaceX "made it clear that it sees Starship and Superheavy as its own space effort, irrelevant of NASA": "To return Americans to the Moon, SpaceX aligned Starship development along two paths: development of the core Starship system and supporting infrastructure, including production facilities, test facilities, and launch sites -- which SpaceX is self-funding representing over 90% of system costs -- and development of the HLS-specific Starship configuration, which leverages and modifies the core vehicle capability to support NASA's requirements for landing crew on and returning them from the Moon. SpaceX is working under a fixed-price contract with NASA, ensuring that the company is only paid after the successful completion of progress milestones, and American taxpayers are not on the hook for increased SpaceX costs. SpaceX provides significant insight to NASA at every stage of the development process along both paths, including access to flight data from missions not funded under the HLS contract.

Both pathways are necessary and made possible by SpaceX's substantial self-investments to enable the high-rate production, launch, and test of Starship for missions to the Moon and other purposes. Starship will bring the United States back to the Moon before any other nation and it will enable sustainable lunar operations by being fully and rapidly reusable, cost-effective, and capable of high frequency lunar missions with more than 100 tons of cargo capacity."

Math

Mathematical Proof Debunks the Idea That the Universe Is a Computer Simulation (phys.org) 248

alternative_right shares a report from Phys.org: Today's cutting-edge theory -- quantum gravity -- suggests that even space and time aren't fundamental. They emerge from something deeper: pure information. This information exists in what physicists call a Platonic realm -- a mathematical foundation more real than the physical universe we experience. It's from this realm that space and time themselves emerge. "The fundamental laws of physics cannot be contained within space and time, because they generate them. It has long been hoped, however, that a truly fundamental theory of everything could eventually describe all physical phenomena through computations grounded in these laws. Yet we have demonstrated that this is not possible. A complete and consistent description of reality requires something deeper -- a form of understanding known as non-algorithmic understanding." "We have demonstrated that it is impossible to describe all aspects of physical reality using a computational theory of quantum gravity," says Dr. Faizal. "Therefore, no physically complete and consistent theory of everything can be derived from computation alone. Rather, it requires a non-algorithmic understanding, which is more fundamental than the computational laws of quantum gravity and therefore more fundamental than spacetime itself."

"Drawing on mathematical theorems related to incompleteness and indefinability, we demonstrate that a fully consistent and complete description of reality cannot be achieved through computation alone," explains Dr. Mir Faizal, Adjunct Professor with UBC Okanagan's Irving K. Barber Faculty of Science. "It requires non-algorithmic understanding, which by definition is beyond algorithmic computation and therefore cannot be simulated. Hence, this universe cannot be a simulation."

The findings have been published in the Journal of Holography Applications in Physics.
Space

Alien Worlds May Be Able To Make Their Own Water (science.org) 16

sciencehabit shares a report from Science.org: From enabling life as we know it to greasing the geological machinery of plate tectonics, water can have a huge influence on a planet's behavior. But how do planets get their water? An infant world might be bombarded by icy comets and waterlogged asteroids, for instance, or it could form far enough from its host star that water can precipitate as ice. However, certain exoplanets pose a puzzle to astronomers: alien worlds that closely orbit their scorching home stars yet somehow appear to hold significant amounts of water.

A new series of laboratory experiments, published today in Nature, has revealed a deceptively straightforward solution to this enigma: These planets make their own water. Using diamond anvils and pulsed lasers, researchers managed to re-create the intense temperatures and pressures present at the boundary between these planets' hydrogen atmospheres and molten rocky cores. Water emerged as the minerals cooked within the hydrogen soup. Because this kind of geologic cauldron could theoretically boil and bubble for billions of years, the mechanism could even give hellishly hot planets bodies of water -- implying that ocean worlds, and the potentially habitable ones among them, may be more common than scientists already thought. "They can basically be their own water engines," says Quentin Williams, an experimental geochemist at the University of California Santa Cruz who was not involved with the new work.

Science

UK Cyclist Receives 3D-Printed Facial Prosthetic After Crash Left Him With Third-Degree Burns (theguardian.com) 9

A cyclist who received severe third-degree burns to his head after being struck by a drunk driver has been fitted with a printed 3D face. The Guardian: Dave Richards, 75, was given a 3D prosthetic by the NHS that fits the space on his face and mimics his hair colour, eye colour and skin. [...] While recovering, he was referred to reconstructive prosthetics, which has opened the Bristol 3D medical centre, the first of its kind in the UK to have 3D scanning, design and printing in a single NHS location. Richards, from Devon, said surgeons tried to save his eye but "they were worried any infection could spread from my eye down the optic nerve to the brain so the eye was removed."

[...] He called the process of getting a 3D-printed face "not the most pleasant." He added: "In the early days of my recovery, I felt very vulnerable, and would not expose myself to social situations. It took me a long time to feel comfortable about my image, how I thought people looked at me and what they thought of me -- but I have come a long way in that respect."

Encryption

Signal Chief Explains Why the Encrypted Messenger Relies on AWS (theverge.com) 61

An anonymous reader shares a report: After last week's major AWS outage took Signal along with it, Elon Musk was quick to criticize the encrypted messaging app's reliance on big tech. But Signal president Meredith Whittaker argues that the company didn't have any other choice but to use AWS or another major cloud provider.

"The problem here is not that Signal 'chose' to run on AWS," Whittaker writes in a series of posts on Bluesky. "The problem is the concentration of power in the infrastructure space that means there isn't really another choice: the entire stack, practically speaking, is owned by 3-4 players."

In the thread, Whittaker says the number of people who didn't realize Signal uses AWS is "concerning," as it indicates they aren't aware of just how concentrated the cloud infrastructure industry is. "The question isn't 'why does Signal use AWS?'" Whittaker writes. "It's to look at the infrastructural requirements of any global, real-time, mass comms platform and ask how it is that we got to a place where there's no realistic alternative to AWS and the other hyperscalers."

Math

First Shape Found That Can't Pass Through Itself (quantamagazine.org) 35

Mathematicians have identified the first shape that cannot pass through itself. Jakob Steininger and Sergey Yurkevich described the Noperthedron in a paper posted online in August. The shape has 90 vertices and 152 faces. The discovery resolves a question that began in the late 1600s when Prince Rupert of the Rhine won a bet by proving one cube could slide through a tunnel bored through another. Mathematician John Wallis confirmed this mathematically in 1693.

The property became known as the Rupert property. In 1968, Christoph Scriba proved the tetrahedron and octahedron also possess this quality. Over the past decade, researchers found Rupert tunnels through many symmetric polyhedra, including the dodecahedron and icosahedron. Mathematicians had conjectured every convex polyhedron would have the Rupert property. Steininger and Yurkevich divided the space of possible orientations into approximately 18 million blocks and tested each. None produced a passage. The Noperthedron consists of 150 triangles and two regular 15-sided polygons.
ISS

Japan Launches a New Cargo Spacecraft to ISS for the First Time (space.com) 10

"Japan's new HTV-X cargo spacecraft launched on its first-ever mission to the International Space Station on Saturday," reports Space.com: The robotic HTV-X lifted off atop an H3 rocket from Japan's Tanegashima Space Center at 8 p.m. EDT (0000 GMT and 9 a.m local Japan time on October 26). It is expected to arrive at the station for its capture and berthing on Wednesday (Oct. 29) at about 11:50 a.m. EDT (1550 GMT)...

The HTV-X's potential uses also extend beyond the ISS, according to JAXA. The agency envisions it aiding "post-ISS human space activities in low Earth orbit" as well as possibly flying cargo to Gateway, the space station NASA may build in lunar orbit as part of its Artemis program.

HTV-X's debut increases the stable of ISS cargo craft by one-third. The currently operational freighters are Russia's Progress vehicle and Cygnus and Dragon, spacecraft built by the American companies Northrop Grumman and SpaceX, respectively. Only Dragon is reusable; the others (including HTV-X) are designed to burn up in Earth's atmosphere when their missions are over.

China

China's Zhuque-3 Reusable Rocket Passes Key Milestone (universetoday.com) 42

China's private space company LandSpace has completed a key static fire test of its Zhuque-3 (ZQ-3) reusable rocket -- a stainless-steel, methane-fueled launcher modeled after SpaceX's Starship. Universe Today reports: The latest milestone took place on Monday, Oct. 22nd at the Dongfeng commercial space innovation pilot zone (where the JSLC is located). It involved another static fire test, where the rocket was fully-fueled but remained fixed to the launch pad while the engines were fired. This kind of testing is a crucial prelaunch trial (what NASA refers to as a "wet dress rehearsal"), and places the company and China another step closer to making an inaugural flight test, which is expected to happen by the fourth quarter of 2025.

In traditional Chinese, Zhuque is the name of the Vermillion Bird that represents fire, the south, and summer, and is one of the four Symbols of the Chinese constellations. Like the Starship, the Zhuque-3 is composed of stainless steel and relies on a combination of liquid methane (LCH4) and liquid oxygen (LOX) propellant. The rocket will be powered by nine Tianque-12A (TQ-12A) engines and will measure 65.9 m (216 ft) tall and weigh 550,000 kg (1,210,000 lb). It's payload capacity will be significantly less than the Starship: 11,800 kg (26,000 lbs) in its expendable mode, and 8,000 kg (18,000 lbs) for the recoverable version. This is closer in payload capacity to the Falcon 9, which is capable of delivering 22,800 kg (50,265 lbs) to Low Earth Orbit (LEO).

In time, the company hopes to transition to the larger Zhuque-3E, which will be 76.2 m (250 ft) tall and powered by nine TQ-12B engines, and will be capable of delivering to 21,000 kg (46,000 lb) in its expandable mode and 18,300 kg (40,300 lb) recoverable. The long term goal is to create a reusable system that can rival the Falcon rocket family, bringing the country closer to its goal of achieving parity with NASA.

EU

Europe's Big Three Aerospace Manufacturers Combine Their Space Divisions (engadget.com) 34

Airbus, Leonardo, and Thales are merging their space divisions into a new France-based company that aims to create a "leading European player in space." The joint venture, expected to launch operations by 2027 pending regulatory approval, will pool R&D resources to accelerate satellite development and strengthen Europe's technological sovereignty in space. Engadget reports: The companies Airbus, Leonardo and Thales have finalized this deal. The new unnamed entity will be based in France and will employ around 25,000 people. Airbus will own 35 percent, while the other two companies will each own 32.5 percent. Executives are hoping this company will better serve Europe's need for "sovereignty" in space and help it create a rival to SpaceX's Starlink communications network. Increasing a presence in space is also seen as a good thing for security and defense.

This isn't just bluster. Thales and Airbus have long been rivals in the satellite market, but it looks like they are friends now. Leonardo is known for space systems and services. Combining all three could actually give SpaceX a run for its money, but we will have to wait and see. There are no planned site closures, as the companies say that each home country will keep its existing capabilities. This will be a standalone company, so think of it as an extremely well-financed startup. The first task for the upstart? Reporting indicates it'll be to find more efficient ways to develop and manufacture satellites.

First Person Shooters (Games)

Programmer Gets Doom Running On a Space Satellite (zdnet.com) 28

An Icelandic programmer successfully ran Doom on the European Space Agency's OPS-SAT satellite, proving that the iconic 1993 shooter can now run not just everywhere on Earth -- but in orbit. ZDNet reports: Olafur Waage, a senior software developer from Iceland who now works in Norway, explained at Ubuntu Summit 25.10 how he, a self-described "professional keyboard typist" and maker of funny videos, ended up making what is perhaps the game's most outlandish port yet: Doom running on a real satellite in orbit, the European Space Agency (ESA) OPS-SAT satellite. OPS-SAT, a "flying laboratory" for testing novel onboard computing techniques, was equipped with an experimental computer approximately 10 times more powerful than the norm for spacecraft. Waag explained, "OPS-SAT was the first of its kind, devoted to demonstrating drastically improved mission control capabilities when satellites can fly more powerful onboard computers. The point was to break the curse of being too risk-averse with multi-million-dollar spacecraft." (The satellite was decommissioned in 2024.) [...]

Running Doom in orbit was partly a challenge of portability and partly a challenge of the limitations of space hardware and mission control. The on-board ARM dual-core Cortex-A9 processor, while hot stuff for space computing hardware (which tends to be low-powered and radiation-hardened), was slow even by Earth-bound standards. Waage chose Chocolate Doom 2.3, a popular open-source version of Doom, for its compatibility with the Ubuntu 18.04 Long Term Support (LTS) distro, which was already running on OPS-SAT. Besides, Waage noted, "We picked Chocolate Doom 2.3 because of the libraries available for 18.04 -- that was the last one that would actually build.

Updating software in orbit is extremely difficult, so relatively little code would have to be uploaded. As Waage said, "Doom is relatively straightforward C with a few external dependencies." In other words, it's easy to port. [...] The only sign that Doom was running in space at first was a lone log entry. So, the team used the satellite's camera to snap real-time images of the Earth, then swapped Doom's Mars skybox for actual satellite photos. "The idea was to take a screenshot from the satellite and use that as the sky, all rendered in software using the game's restricted 256-color palette," explained Waage. Even this posed unexpected difficulties: "Trying to draw all of these beautiful colors with those colors," said Waage, "it's probably not going to work right off. But we tried gradient tests, NASA demo photos. It took quite a bit of tweaking." Eventually, instead of a fantasy Mars as the sky background, they got a good-looking, real Earth in the game's sky. The game itself ran flawlessly. After all, Waage said, "It ran beautifully. It's on Ubuntu."

Earth

Dinosaurs Were Thriving Until Asteroid Struck, Research Suggests (theguardian.com) 39

An anonymous reader quotes a report from The Guardian: Dinosaurs would not have become extinct had it not been for a catastrophic asteroid strike, researchers have said, challenging the idea the animals were already in decline. About 66 million years ago, during the late Cretaceous period, a huge space rock crashed into Earth, triggering a mass extinction that wiped out all dinosaurs except birds. However, some experts have argued the dinosaurs were already in decline. Now researchers say the dating of a rock formation in New Mexico throws doubt on that idea, suggesting dinosaurs were thriving until the fateful impact.

Dr Andrew Flynn, the first author of the research at New Mexico State University, said: "I think based on our new study that shows that, at least in North America, they weren't going towards extinction." Writing in the journal Science, Flynn and colleagues report how they dated a unit of rock called the Naashoibito Member in the San Juan basin using two methods. Flynn said the perception that overall dinosaur diversity was falling before the asteroid hit could be a result of there being fewer exposed rocks, and hence fossils, dating to the end of the Cretaceous period than earlier in the epoch. "It looks like, as far as we can tell, there's no reason they should have gone extinct except for [the] asteroid impact," he said.

NASA

NASA Opens SpaceX's Moon Lander Contract To Rivals Over Starship Delays (reuters.com) 61

NASA has reopened SpaceX's $4.4 billion moon lander contract to new bidders like Blue Origin and Lockheed Martin after delays in Starship's development threatened the 2027 Artemis 3 mission. Reuters reports: The move paves the way for rivals such as Jeff Bezos' Blue Origin to snatch a high-profile mission to land the first astronauts on the moon in half a century. "I'm in the process of opening that contract up. I think we'll see companies like Blue get involved, and maybe others," the U.S. space agency's acting chief Sean Duffy, who also serves as U.S. Transportation Secretary, told Fox News' "Fox & Friends" program.

Duffy's comments follow months of mounting pressure within NASA to speed up its Artemis lunar program and push SpaceX to make greater progress on its Starship lunar lander, while China progresses toward its own goal of sending humans to the moon by 2030. It represents a major shift in NASA's lunar strategy, starting a new competitive juncture in the program for a crewed moon lander just two years before the scheduled landing date. Blue Origin is widely expected to compete for the mission, while Lockheed Martin has indicated it would convene an industry team to heed NASA's call.

Starship, picked by NASA in 2021 under a contract now worth $4.4 billion, faces a 2027 moon landing deadline that agency advisers estimate could slip years behind schedule, citing competing priorities. Musk sees Starship as crucial to launching larger batches of Starlink satellites to space and eventually ferrying humans to Mars, among other missions. "They do remarkable things, but they're behind schedule," Duffy said of SpaceX's lunar lander work, adding President Donald Trump wants to see the mission take place before his White House term ends in January 2029.

Communications

SpaceX Launches 10,000th Starlink Satellite (space.com) 42

SpaceX surpassed the 10,000-satellite milestone for its Starlink constellation after two Falcon 9 launches on Oct. 19 added 56 more satellites to orbit. The company now operates about two-thirds of all active satellites worldwide and continues to break reuse records. Space.com reports: A Falcon 9 rocket carrying 28 Starlink internet satellites lifted off from California's Vandenberg Space Force Base today at 3:24 p.m. EDT (1924 GMT; 12:24 p.m. local California time). Those 28 included the 10,000th Starlink spacecraft ever to reach orbit, which a SpaceX employee noted on the company's launch webcast: "From Tintin to 10,000! Go Starlink, go Falcon, go SpaceX!"

It was also the 132nd Falcon 9 liftoff of the year, equaling the mark set by the rocket last year -- and there are still nearly 2.5 months to go in 2025. [...] This launch was the second of the day for SpaceX; less than two hours earlier, another Falcon 9 sent 28 more Starlink satellites up from Florida's Space Coast. That earlier liftoff was the 31st for that Falcon 9's first stage, setting a new reuse record.

Space

Mystery Object From 'Space' Strikes United Airlines Flight Over Utah (wired.com) 58

UPDATE: It may have been a weather balloon...

An anonymous reader quotes a report from Wired: The National Transportation Safety Board confirmed Sunday that it is investigating an airliner that was struck by an object in its windscreen, mid-flight, over Utah. "NTSB gathering radar, weather, flight recorder data," the federal agency said on the social media site X. "Windscreen being sent to NTSB laboratories for examination." The strike occurred Thursday, during a United Airlines flight from Denver to Los Angeles. Images shared on social media showed that one of the two large windows at the front of a 737 MAX aircraft was significantly cracked. Related images also reveal a pilot's arm that has been cut multiple times by what appear to be small shards of glass.

The captain of the flight reportedly described the object that hit the plane as "space debris." This has not been confirmed, however. After the impact, the aircraft safely landed at Salt Lake City International Airport after being diverted. Images of the strike showed that an object made a forceful impact near the upper-right part of the window, showing damage to the metal frame. Because aircraft windows are multiple layers thick, with laminate in between, the window pane did not shatter completely. The aircraft was flying above 30,000 feet -- likely around 36,000 feet -- and the cockpit apparently maintained its cabin pressure.

Books

Was the Web More Creative and Human 20 Years Ago? (bookforum.com) 77

Readers in 2025 "may struggle to remember the optimism of the aughts, when the internet seemed to offer endless possibilities for virtual art and writing that was free..." argues a new review at Bookforum. "The content we do create online, if we still create, often feels unreflectively automatic: predictable quote-tweet dunks, prefabricated poses on Instagram, TikTok dances that hit their beats like clockwork, to say nothing of what's literally thoughtlessly churned out by LLM-powered bots."

They write that author Joanna Walsh "wants us to remember how truly creative, and human, the internet once was," in the golden age of user-generated content — and funny cat picture sites like I Can Has Cheezburger: I Can Has Cheezburger... was an amateur project, an outlet for tech professionals who wanted an easier way to exchange cute cat pics after a hard day at work. In Amateurs!: How We Built Internet Culture and Why It Matters, Walsh documents how unpaid creative labor is the basis for almost everything that's good (and much that's bad) online, including the open-source code Linux, developed by Linus Torvalds when he was still in school ("just as a hobby, won't be big and professional"), and even, in Walsh's account, the World Wide Web itself. The platforms that emerged in the 2000s as "Web 2.0," including Facebook, YouTube, Reddit, and Twitter, allowed anyone to experiment in a space that had been reserved for coders and hackers, making the internet interactive even for the inexpert and virtually unlimited in potential audience. The explosion in amateur creativity that followed took many forms, from memes to tweeted one-liners to diaristic blogs to durational digital performances to sloppy Photoshops to the formal and informal taxonomic structures — wikis, neologisms, digitally native dialects...

[U]ser-generated content was also, at bottom, about the bottom line, a business model sold to us under the guise of artistic empowerment. Even referring to an anonymous amateur as a "user," Walsh argues, cedes ground: these platforms are populated by producers, but their owners see us as, and turn us into, "helpless addicts." For some, online amateurism translated to professional success, a viral post earning an author a book deal, or a reputation as a top commenter leading to a staff writing job on a web publication... But for most, these days, participation in the online attention economy feels like a tax, or maybe a trickle of revenue, rather than free fun or a ticket to fame. The few remaining professionals in the arts and letters have felt pressured to supplement their full-time jobs with social media self-promotion, subscription newsletters, podcasts, and short-form video. On what was once called Twitter, users can pay, and sometimes get paid, to post with greater reach...

The chapters are bookended by an introduction on the early promise of 2004 and a coda on the defeat of 2025 and supplemented by an appendix with a straightforward timeline of the major events and publications that serve as the book's touchstones... The online spaces where amateur content creators once "created and steered online culture" have been hollowed out and replaced by slop, but what really hurts is that the slop is being produced by bots trained on precisely that amateur content.

Space

'How We Sharpened the James Webb Telescope's Vision From a Million Kilometers Away' (theconversation.com) 18

The James Webb Space Telescope gets its highest resolution with the aperture masking interferometer (or AMI), "a tiny piece of precisely machined metal that slots into one of the telescope's cameras," according to a new article by Benjamin Pope, an associated math professor at Macquarie University.

"We can finally present its first successful observations of stars, planets, moons and even black hole jets." [AMI] was put on Webb to diagnose and measure any blur in its images. Even nanometres of distortion in Webb's 18 hexagonal primary mirrors and many internal surfaces will blur the images enough to hinder the study of planets or black holes, where sensitivity and resolution are key. AMI filters the light with a carefully structured pattern of holes in a simple metal plate, to make it much easier to tell if there are any optical misalignments. We wanted to use this mode to observe the birth places of planets, as well as material being sucked into black holes. But before any of this, AMI showed Webb wasn't working entirely as hoped.

At very fine resolution — at the level of individual pixels — all the images were slightly blurry due to an electronic effect: brighter pixels leaking into their darker neighbours. This is not a mistake or flaw, but a fundamental feature of infrared cameras that turned out to be unexpectedly serious for Webb. This was a dealbreaker for seeing distant planets many thousands of times fainter than their stars a few pixels away: my colleagues quickly showed that its limits were more than ten times worse than hoped. So, we set out to correct it...

We built a computer model to simulate AMI's optical physics, with flexibility about the shapes of the mirrors and apertures and about the colours of the stars. We connected this to a machine learning model to represent the electronics with an "effective detector model" — where we only care about how well it can reproduce the data, not about why. After training and validation on some test stars, this setup allowed us to calculate and undo the blur in other data, restoring AMI to full function. It doesn't change what Webb does in space, but rather corrects the data during processing. It worked beautifully — the star HD 206893 hosts a faint planet and the reddest-known brown dwarf (an object between a star and a planet). They were known but out of reach with Webb before applying this correction. Now, both little dots popped out clearly in our new maps of the system... With the new correction, we brought Jupiter's moon Io into focus, clearly tracking its volcanoes as it rotates over an hour-long timelapse.

"This correction has opened the door to using AMI to prospect for unknown planets at previously impossible resolutions and sensitivities..." the article points out.

"Our results on painstakingly testing and enhancing AMI are now released on the open-access archive arXiv in a pair of papers."

Thanks to long-time Slashdot reader schwit1 for sharing the article.
Communications

A Classified Network of SpaceX Satellites Is Emitting a Mysterious Signal (npr.org) 46

A network of classified Starshield satellites built by SpaceX for the U.S. government is transmitting signals on radio frequencies reserved for Earth-to-space commands. According to NPR, it may violate international standards. From the report: Satellites associated with the Starshield satellite network appear to be transmitting to the Earth's surface on frequencies normally used for doing the exact opposite: sending commands from Earth to satellites in space. The use of those frequencies to "downlink" data runs counter to standards set by the International Telecommunication Union, a United Nations agency that seeks to coordinate the use of radio spectrum globally.

Starshield's unusual transmissions have the potential to interfere with other scientific and commercial satellites, warns Scott Tilley, an amateur satellite tracker in Canada who first spotted the signals. "Nearby satellites could receive radio-frequency interference and could perhaps not respond properly to commands -- or ignore commands -- from Earth," he told NPR.

Outside experts agree there's the potential for radio interference. "I think it is definitely happening," said Kevin Gifford, a computer science professor at the University of Colorado, Boulder who specializes in radio interference from spacecraft. But he said the issue of whether the interference is truly disruptive remains unresolved. [...] Tilley says he's detected signals from 170 of the Starshield satellites so far. All appear in the 2025-2110 MHz range, though the precise frequencies of the signals move around.

ISS

New ITVX Channel Streams Absolutely Spellbinding Footage of Earth... Forever (theguardian.com) 36

An anonymous reader quotes a report from The Guardian: I realize that, at this point, there are already far too many shows. Every channel, every streaming service is teeming with content demanding your attention, and there are simply too few hours in the day to watch them all. However, with that in mind, may I recommend a new show called Space Live? There's only one episode. The only potential downside is that the episode literally lasts for ever. Actually, that's inaccurate. Space Live isn't a show, it's a channel. It launched on Wednesday morning, tucked away on ITVX, and consists only of live footage of Earth broadcast from the International Space Station. It's beguiling to watch, especially for anyone who didn't realize that a person can be awestruck and bored simultaneously.

It's billed as a world first. ITV has partnered with British space media company Sen to use live 4K footage from its proprietary SpaceTV-1 video camera system, mounted on the International Space Station, giving us three camera views: one of the station's docking ports, a horizon view able to show sunrises and storms, and a camera pointing straight down as the ISS passes across the planet. A tracker in the corner of the screen shows the live location of the ISS, while a real-time AI information feed provides facts about our geography and weather systems.

Of course, if you wanted to be picky, you could argue it isn't exactly new. Nasa's YouTube channel has been streaming live footage from the ISS for years, and uniformly draws an audience of a few thousand. But Space Live is, if nothing else, slightly snazzier. The footage is certainly nicer: at 8.30am on Wednesday, Space Live showed gorgeous images of the sun's glare bouncing off the sea around the Bay of Biscay, while all Nasa could offer was a piece of cloth with the word "Flap" written on it. There's even a soundtrack, a constant, soothing kind of hold music that loops and loops without ever becoming fully annoying. It's an improvement, in other words. And, at least for the first orbit, it is absolutely spellbinding.

Portables (Apple)

Apple's New MacBook Pro Delivers 24-Hour Battery Life and Faster AI Processing (apple.com) 75

Apple unveiled a new 14-inch MacBook Pro on Wednesday that features the company's M5 chip and represents what Apple describes as the next major advancement in AI performance for its Mac lineup. The laptop delivers up to 3.5 times faster AI performance than the M4 chip and up to six times faster performance than the M1 chip through a redesigned 10-core GPU architecture that incorporates a Neural Accelerator in each core.

The improvements extend beyond AI processing to include graphics performance that runs up to 1.6 times faster than the previous generation and battery life that reaches up to 24 hours on a single charge. Apple also integrated faster storage technology that performs up to twice as fast as the prior generation and allows configurations up to 4TB. The 10-core CPU delivers up to 20% faster multithreaded performance compared to the M4.

The laptop runs macOS Tahoe and includes a Liquid Retina XDR display available in a nano-texture option, a 12MP Center Stage camera, and a six-speaker sound system. The 14-inch MacBook Pro is available for pre-order starting Wednesday in space black and silver finishes and begins shipping October 22. The base model costs $1,599.
Mars

Common Yeast Can Survive Martian Conditions (phys.org) 33

A new study shows that common baker's yeast (Saccharomyces cerevisiae) can survive Mars-like conditions, including meteorite shock waves and toxic perchlorate salts found in Martian soil. Phys.org reports: Published in PNAS Nexus, Purusharth I. Rajyaguru and colleagues subjected Saccharomyces cerevisiae, which is a widely used model yeast, to shock waves and perchlorates. The authors chose the yeast in part because it has already been studied in space. When stressed, yeast, humans, and many other organisms form ribonucleoprotein (RNP) condensates, structures made of RNA and proteins that protect RNA and affect the fates of mRNAs. When the stressor passes, the RNP condensates, which include subtypes known as stress granules and P-bodies, disassemble.

The authors simulated Martian shock waves at the High-Intensity Shock Tube for Astrochemistry (HISTA) housed in the Physical Research Laboratory in Ahmedabad, India. Yeast exposed to 5.6 Mach intensity shock waves survived with slowed growth, as did yeast subjected to 100 mM sodium salt of perchlorate (NaClO4) -- a concentration similar to that in Martian soils. Yeast cells also survived exposure to the combined stress of shock waves and perchlorate stress. In both cases, the yeast assembled RNP condensates. Shock waves induced the assembly of stress granules and P-bodies; perchlorate caused yeast to make P-bodies but not stress granules. Mutants incapable of assembling RNP condensates were poor at surviving the Martian stress condition. Transcriptome analysis identified specific RNA transcripts perturbed by Mars-like conditions.

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