New submitter Smonster shares a report from the New York Times: With restrictions on space and weight, what would you bring if you were going to Mars? An ideal option might be a single material that can shift shapes into any object you imagine. In the morning, you could mold that material into utensils for eating. When breakfast is done, you could transform your fork and knife into a spade to tend to your Martian garden. And then when it's happy hour on the red planet, that spade could become a cup for your Martian beer. What sounds like science fiction is, perhaps, one step closer to reality.

Researchers at the University of Chicago Pritzker School of Molecular Engineering have created a new type of plastic with properties that can be set with heat and then locked in with rapid cooling, a process known as tempering. Unlike classic plastics, the material retains this stiffness when returned to room temperature. The findings, published in the journal Science on Thursday, could someday change how astronauts pack for space.

"Rather than taking all the different plastics with you, you take this one plastic with you and then just give it the properties you need as you require," said Stuart Rowan, a chemist at the University of Chicago and an author of the new study. But space isn't the only place the material could be useful. Dr. Rowan's team also sees its potential in other environments where resources are scare -- like at sea or on the battlefield. It could also be used to make soft robots and to improve plastics recycling.

SpaceX's Starship rocket has been selected by Starlab to launch its private space station into orbit. "SpaceX's history of success and reliability led our team to select Starship to orbit Starlab," Dylan Taylor, chairman and CEO of Voyager Space, said in a statement. "SpaceX is the unmatched leader for high-cadence launches, and we are proud Starlab will be launched to orbit in a single flight by Starship." Space.com reports: Today's announcement didn't give a target launch date. But NASA and Starlab's developers want the four-person commercial station to be up and running before 2030, when the International Space Station (ISS) is expected to cease operations (though that retirement date is apparently not set in stone). [...] The 400-foot-tall (122 meters) Starship is the biggest and most powerful rocket ever built, capable of hauling up to 150 tons to low Earth orbit. It will send the fully outfitted Starlab up in just one launch, as Taylor noted above.

"Starlab's single-launch solution continues to demonstrate not only what is possible, but how the future of commercial space is happening now," Tom Ochinero, senior vice president of commercial business at SpaceX, said in the same statement. "The SpaceX team is excited for Starship to launch Starlab to support humanity's continued presence in low Earth orbit on our way to making life multiplanetary," Ochinero added.

SpaceX revealed that it's delivering over 42 petabytes of data for customers per day, according to engineer Travis Brashears. "We're passing over terabits per second [of data] every day across 9,000 lasers," Brashears said today at SPIE Photonics West, an event in San Francisco focused on the latest advancements in optics and light. "We actually serve over lasers all of our users on Starlink at a given time in like a two-hour window." PCMag reports: Although Starlink uses radio waves to beam high-speed internet to customers, SpaceX has also been outfitting the company's satellites with a "laser link" system to help drive down latency and improve the system's global coverage. The lasers, which can sustain a 100Gbps connection per link, are especially crucial to helping the satellites fetch data when no SpaceX ground station is near, like over the ocean or Antarctic. Instead, the satellite can transmit the data to and from another Starlink satellite in Earth's orbit, forming a mesh network in space.

Tuesday's talk from Brashears revealed the laser system is quite robust, even as the equipment is flying onboard thousands of Starlink satellites constantly circling the Earth. Despite the technical challenges, the company has achieved a laser "link uptime" at over 99%. The satellites are constantly forming laser links, resulting in about 266,141 "laser acquisitions" per day, according to Brashears' presentation. But in some cases, the links can also be maintained for weeks at a time, and even reach transmission rates at up to 200Gbps.

Brashears also said Starlink's laser system was able to connect two satellites over 5,400 kilometers (3,355 miles) apart. The link was so long "it cut down through the atmosphere, all the way down to 30 kilometers above the surface of the Earth," he said, before the connection broke. "Another really fun fact is that we held a link all the way down to 122 kilometers while we were de-orbiting a satellite," he said. "And we were able to downstream the video." During his presentation, Brashears also showed a slide depicting how the laser system can deliver data to a Starlink dish in Antarctica through about seven different paths. "We can dynamically change those routes within milliseconds. So as long as we have some path to the ground [station], you're going to have 99.99% uptime. That's why it's important to get as many nodes up there as possible," he added.

The Los Angeles Times reports that after more than 10 years of planning, "Barring weather delays, the space shuttle Endeavour will undergo its final, historic lift starting Monday night, a maneuver no other retired orbiter has undergone..." First, a pair of cranes will hoist the shuttle from a horizontal position to a vertical one; the spacecraft will be attached to a sling, a large metal frame that'll support it during the move. An 11-story crane will lift the tail of Endeavour, while a 40-story crawler crane — about the height of [Los Angeles'] City Hall — will lift the nose. Once the shuttle is pointed toward the stars, the shorter crane will be disconnected, leaving the taller crane to gently swing the orbiter to its final position and lowering it to be affixed with the giant orange external tank. The external tank is attached to twin solid rocket boosters, which are connected to the exhibit's foundation...

Once the shuttle full stack is in place, the rest of the museum will be built around it. It could be a few years before it is open to the public, given the construction schedule and additional time needed to install exhibits.
"Los Angeles will be home to the only retired space shuttle displayed in a full-stack arrangement as if ready for launch," the article points out.

Officials hope to livestream the historic lift on Monday night at 9:30 p.m. PST.

"Astronomers using NASA's Hubble Space Telescope observed the smallest exoplanet where water vapor has been detected in the atmosphere," writes SciTechDaily.

"At only approximately twice Earth's diameter, the planet GJ 9827d could be an example of potential planets with water-rich atmospheres elsewhere in our galaxy." "This would be the first time that we can directly show through an atmospheric detection, that these planets with water-rich atmospheres can actually exist around other stars," said team member Björn Benneke of the Trottier Institute for Research on Exoplanets at Université de Montréal. "This is an important step toward determining the prevalence and diversity of atmospheres on rocky planets."

"Water on a planet this small is a landmark discovery," added co-principal investigator Laura Kreidberg of Max Planck Institute for Astronomy in Heidelberg, Germany. "It pushes closer than ever to characterizing truly Earth-like worlds."

However, it remains too early to tell whether Hubble spectroscopically measured a small amount of water vapor in a puffy hydrogen-rich atmosphere, or if the planet's atmosphere is mostly made of water, left behind after a primeval hydrogen/helium atmosphere evaporated under stellar radiation... Because the planet is as hot as Venus, at 800 degrees Fahrenheit, it definitely would be an inhospitable, steamy world if the atmosphere were predominantly water vapor...

"Observing water is a gateway to finding other things," said Thomas Greene, astrophysicist at NASA's Ames Research Center in California's Silicon Valley. "This Hubble discovery opens the door to future study of these types of planets by the James Webb Space Telescope.

Around three hours after its moon lander had touched down, Japan's space agency "decided to switch SLIM off with 12% power remaining to allow for a possible resumption when the sun's angle changed," reports Agence France-Presse.

Today there was good news: Japan's Moon lander has resumed operations, the country's space agency said on Monday, indicating that power had been restored after it was left upside down during a slightly haphazard landing. The probe, nicknamed the "moon sniper", had tumbled down a crater slope during its landing on 20 January, leaving its solar batteries facing in the wrong direction and unable to generate electricity...

The agency posted on X an image shot by Slim of "toy poodle", a rock observed near the lander.

"A photo of Japan's robotic moon lander shows that though the spacecraft did make the quarter-million-mile journey to the lunar surface, it landed upside down..." reports Mashable. Because of the lander's now-apparent inverted position, its solar panels weren't oriented correctly to generate power, according to the space agency. The team elected to conserve power by shutting down the spacecraft about 2.5 hours after landing.

What's perhaps as surprising as the photo of the lander is how it was taken. Two small rovers separated from the crewless mothership just prior to touchdown. It was one of these baseball-sized robots that was able to snap the image of the spacecraft with its head in the moondust. The rover, built with the help of Japanese toy maker Takara Tomy, is a sphere that splits in half to expose a pair of cameras that point front and back. The two hemispheres also become the rover wheels. "The company is perhaps most famous for originally creating the Transformers, the alien robots that can disguise themselves as machines," said Elizabeth Tasker, who provided commentary on the moon landing in English on Jan. 20.

The space agency still isn't entirely sure what went wrong. At about 55 yards above the ground, the spacecraft performed an obstacle avoidance maneuver, part of the pinpoint-landing demonstration. Just prior to this step, one of the two main engines stopped thrusting, throwing the lander's orientation off. JAXA is continuing to investigate what caused the engine problem... Despite the fact that the spacecraft is now sleeping, the SLIM team hasn't lost hope for a recovery. With solar panels facing west, the lander still has a chance of catching some rays and generating power. If the angle of sunlight changes, SLIM could still be awakened, mission officials said.

That would have to happen soon, though. Night will fall on the moon on Feb. 1, bringing about freezing temperatures. The spacecraft was not built to withstand those conditions.
NASA's Lunar Reconnaissance Orbiter spacecraft has now passed over the landing site at an altitude of about 50 miles (80 km) — and snapped their own photograph which they say shows "the slight change in reflectance around the lander due to engine exhaust sweeping the surface."

"According to one study, homeowners are three times more likely than renters to own an electric vehicle," writes the Washington Post. But others still have options: Drivers who park on the street have found novel ways to charge their vehicles, using extension cords running over the sidewalk or even into the branches of a nearby tree... [S]ome municipalities explicitly allow over-the-sidewalk charging as part of a broader strategy to cut transportation emissions... In some areas, homeowners can also hire an electrician to run power under the sidewalk to a curbside charging port. But homeowners should check local rules and permitting requirements for curbside charging. In some highly EV-friendly cities, local governments will cover the costs. In Seattle, a pilot program is installing faster curbside charging to residents who opt in to the program...

If home charging simply isn't an option, some drivers rely on public charging — either using workplace chargers or charging occasionally on DC fast chargers, which can bring an EV battery from 0 to 80 percent in around 20 minutes. The problem is that public charging is more expensive than charging at home — although in most places, still less expensive than gas... For drivers who have access to Tesla superchargers, public charging might still be a solid option — but for non-Tesla drivers, it's still a challenge. Many fast chargers can be broken for days or weeks on end, or can be crowded with other drivers. The popular charging app PlugShare can help EV owners find available charging ports, but relying on public fast charging can quickly become a pain for drivers used to quickly filling up on gas. In those situations, a plug-in hybrid or regular hybrid car might be a better option.
And beyond that, "experts say that there are a key few steps that renters or condo owners can take to access charging," according to the article: The first is looking up local "right-to-charge" laws — regulations that require homeowners' associations or landlords to allow residents to install Level 1 or Level 2 charging. Ten states have "right-to-charge" laws on the books. In California and Colorado, for example, renters or homeowners have the right to install charging at their private parking space or, in some cases, in a public area at their apartment building. Other states, including Florida, Hawaii and New Jersey, have similar but limited laws. Residents can also reach out to landlords or property owners directly and make the case for installing charging infrastructure. All of this "puts a fair amount of onus on the driver," said Ben Prochazka, the executive director of the Electrification Coalition. But, he added, many EV advocacy groups are working on changing building codes in cities and states so that all multifamily homes with parking have to be "EV-ready."
Ingrid Malmgren, policy director at the EV advocacy group Plug In America, tells the newspaper that "communities all over the country are coming up with creative solutions. And it's just going to get easier and easier."

Astronomers have discovered a mysterious group of giant elderly stars at the heart of the Milky Way that are emitting solar system-sized clouds of dust and gas. The stars, which have been named "old smokers," sat quietly for many years, fading almost to invisibility, before suddenly puffing out vast clouds of smoke. The discovery was made during the monitoring of almost a billion stars in infrared light during a 10-year survey of the night sky. The Guardian: The astronomers had set out to capture rarely seen newborn stars -- known as protostars -- while undergoing the equivalent of a stellar growth spurt. During these periods, young stars rapidly acquire mass by gorging on surrounding star-forming gas, leading to a sudden increase in luminosity. The team tracked hundreds of millions of stars and identified 32 erupting protostars that increased in brightness at least 40-fold and in some cases more than 300-fold.

Another group of red giant stars near the centre of the Milky Way unexpectedly showed up in the analysis, however. When they were studied in more detail using the European Southern Observatory's Very Large Telescope, seven of the stars were deemed to be a new type of red giant star, which the researchers named "old smokers." Convection currents and instabilities within the star could trigger the release of enormous columns of smoke, Prof Philip Lucas of the University of Hertfordshire, who led the observations, suggested.

Netflix is on everything. It's on your phone, computer, and game console, going all the way back to the Nintendo Wii. Hell, you can get your Netflix fix on a Peloton. One place where Netflix won't be is Apple's upcoming Vision Pro VR headset. Why isn't Netflix planning an app for what is Apple's big $3,500 gamble on the future of augmented reality? According to co-CEO Greg Peters, it's because the company doesn't know if anybody's actually going to use it. Gizmodo: More specifically, he called the device "subscale," adding that he didn't know if it would be "relevant to most of our members." That was in an interview with business analyst Ben Thompson, where Peters implied his company is being far more selective, at least when it comes to Apple's $3,500 "spatial computer."

"We have to be careful about making sure that we're not investing in places that are not really yielding a return, and I would say we'll see where things go with Vision Pro," the Netflix co-CEO said. The interview dropped barely a day after Peters got done extolling how the company gained more than 13 million new subscribers in the last three months of 2023 while also mentioning potentially increasing subscription prices. Other common apps like Spotify and YouTube also don't plan to have a Vision Pro-specific app at launch, instead directing people to log on through their Safari browser. Peters added that they still want to work with Apple, and "sometimes we find a great space of overlap. We can move very, very quickly. Sometimes it takes a little bit longer." The investment Netflix is talking about is not unchecking a box to enable the iPad app on the Vision Pro.

Starting today Apple is opening up its App Store to allow game streaming apps and services. From a report: This means that services like Xbox Cloud Streaming and GeForce Now, which previously were only accessible on iOS via a web browser, will be able to offer full-featured apps. "Developers can now submit a single app with the capability to stream all of the games offered in their catalog," Apple wrote in a blog post. These changes apply "worldwide," according to the company.

In 2020, Apple appeared to have carved out a space for these cloud gaming services in the App Store. But that turned out not to be the case, as all games available through each service had to be submitted and reviewed as a standalone app. So the shift to allow one app with a large catalog of games marks a major change. As part of today's announcement, Apple said that "each experience made available in an app on the App Store will be required to adhere to all App Store Review Guidelines and its host app will need to maintain an age rating of the highest age-rated content included in the app." Apple also says that developers will now "be able to provide enhanced discovery opportunities for streaming games, mini-apps, mini-games, chatbots, and plug-ins that are found within their apps," and that "mini-apps, mini-games, chatbots, and plug-ins will be able to incorporate Apple's In-App Purchase system to offer their users paid digital content or services for the first time, such as a subscription for an individual chatbot."

AT&T, Google and Vodafone are investing a total of $206.5 million in AST SpaceMobile, a satellite manufacturer that plans to be the first space-based network to connect standard mobile phones at broadband speeds. Fierce Wireless reports: AST SpaceMobile claims it invented the space-based direct-to-device market, with a patented design facilitating broadband connectivity directly to standard, unmodified cellular devices. In a press release, AST SpaceMobile said the investment from the likes of AT&T, Google and Vodafone underscores confidence in the company's technology and leadership position in the emerging space-based cellular D2D market. There's the potential to offer connectivity to 5.5 billion cellular devices when they're out of coverage.

Bolstering the case for AST SpaceMobile, Vodafone and AT&T placed purchase orders -- for an undisclosed amount -- for network equipment to support their planned commercial services. In addition, Google and AST SpaceMobile agreed to collaborate on product development, testing and implementation plans for SpaceMobile network connectivity on Android and related devices. AST SpaceMobile boasts agreements and understandings with more than 40 mobile network operators globally. However, it's far from alone in the D2D space. Apple/Globalstar, T-Mobile/SpaceX, Bullitt and Lynk Global are among the others.

NASA announced Friday that it finally got a canister of asteroid dust open, four months after it parachuted down through the Earth's atmosphere into the Utah desert. The Guardian reports: The space administration announced Friday that it had successfully removed two stuck fasteners that had prevented some of the samples collected in 2020 from the 4.6bn-year-old asteroid Bennu, which is classified as a "potentially hazardous" because it has one in 1,750 chance of crashing into Earth by 2300. Most of the rock samples collected by Nasa's Osiris-Rex mission were retrieved soon after the canister landed in September, but additional material remaining inside a sampler head that proved difficult to access.

After months of wrestling with the last two of 35 fasteners, scientists in Houston managed to get them dislodged. "It's open! It's open!" Nasa's planetary science division posted on Twitter/X. The division also posted a photograph of dust and small rocks inside the canister. According to the Los Angeles Times, the team designed custom tools made from a specific grade of surgical, non-magnetic stainless steel to pry it open -- all without the samples being contaminated by Earthly air. Nasa said it will now analyze the nine-ounce sample.

Japan has become the fifth country in the world to soft-land a spacecraft on the Moon, using precision technology that allowed it to touch down closer to its target landing site than any mission has before. However the spacecraft might have survived on the lunar surface for just a few hours due to power failure. Nature: Telemetry showed that the Smart Lander for Investigating Moon, or SLIM, touched down in its target area near Shioli crater, south of the lunar equator early Saturday morning, four months after lifting off from the Tanegashima Space Centre, off the south coast of Japan. [...] According to [Hitoshi] Kuninaka (VP of Kanegawa-based Japan Aerospace Exploration Agency), SLIM has very likely achieved its primary goal -- to land on the Moon with an unprecedented accuracy of 100 metres, which is a big leap from previous ranges of a few to dozens of kilometres. SLIM carried vision-based navigation technology, which was intended to image the surface as it flew over the Moon, and locate itself quickly by matching the images with onboard maps.

It remains unclear if the car-sized, 200-kilogram spacecraft actually touched down in the planned, two-step manner with its five legs. Unlike previous Moon landers, which used four legs to simultaneously reach a relatively flat area, SLIM was designed to hit a 15-degree slope outside Shioli crater first with one leg at the back, and then tip forward to stabilize on the four front legs. Observers suggest that SLIM might have rolled during its touch-down, preventing its solar cells from facing the Sun. Kuninaka said not enough data were available to establish the probe's posture or orientation. However, if some sunlight is able to reach the solar cells there is a chance that SLIM could come back to life.

"Good news..." NASA posted Saturday night on X. "We've reestablished contact with the Mars Helicopter..."

After a two-day communications blackout, NASA had instructed its Perseverance Mars rover "to perform long-duration listening sessions for Ingenuity's signal" — and apparently they did the trick. "The team is reviewing the new data to better understand the unexpected comms dropout" during the helicopter's record-breaking 72nd flight.

Slashdot reader Thelasko shared this report from NPR: Communications broke down on Thursday, when the little autonomous rotorcraft was sent on a "quick pop-up vertical flight," to test its systems after an unplanned early landing during its previous flight, the agency said in a status update on Friday night. The Perseverance rover, which relays data between the helicopter and Earth during the flights, showed that Ingenuity climbed to its assigned maximum altitude of 40 feet, NASA said.

During its planned descent, the helicopter and rover stopped communicating with each other...
Even before it came back online, RockDoctor (Slashdot reader #15,477) pointed out that the Mars copter has done this before. "Batteries dieing, resulting in a communications re-set, If I remember correctly."

Space.com also noted additional alternatives: "Perseverance is currently out of line-of-sight with Ingenuity, but the team could consider driving closer for a visual inspection," NASA's Jet Propulsion Laboratory in Southern California, which manages both robots' missions, said via X on Friday.

Ingenuity has stayed aloft for more than 128 minutes and covered a total of 11 miles (17.7 kilometers) during its 72 Mars flights, according to the mission's flight log.

"A familiar shadow looms in a fresh image of the heart of the nearby galaxy M87," reports Science magazine.

"It confirms that the galaxy harbors a gravitational sinkhole so powerful that light cannot escape, one generated by a black hole 6.5 billion times the mass of the Sun." But compared with a previous image from the network of radio dishes called the Event Horizon Telescope (EHT), the new one reveals a subtle shift in the bright ring surrounding the shadow, which could provide clues to how gases churn around the black hole. "We can see that shift now," says team member Sera Markoff of the University of Amsterdam. "We can start to use that." The new detail has also whetted astronomers' desire for a proposed expansion of the EHT, which would deliver even sharper images of distant black holes.

The new picture, published this week in Astronomy & Astrophysics, comes from data collected 1 year after the observing campaign that led to the first-ever picture of a black hole, revealed in 2019 and named as Science's Breakthrough of the Year. The dark center of the image is the same size as in the original image, confirming that the image depicts physical reality and is not an artifact. "It tells us it wasn't a fluke," says Martin Hardcastle, an astrophysicist at the University of Hertfordshire who was not involved in the study. The black hole's mass would not have grown appreciably in 1 year, so the comparison also supports the idea that a black hole's size is determined by its mass alone. In the new image, however, the brightest part of a ring surrounding the black hole has shifted counterclockwise by about 30 degrees.

That could be because of random churning in the disk of material that swirls around the black hole's equator. It could also be associated with fluctuations in one of the jets launched from the black hole's poles — a sign that the jet isn't aligned with the black hole's spin axis, but precesses around it like a wobbling top. That would be "kind of exciting," Markoff says. "The only way to know is to keep taking pictures...."

[T]he team wants to add more telescopes to the network, which would further sharpen its images and enable it to see black holes in more distant galaxies.
Thanks to Slashdot reader sciencehabit for sharing the news.

"The discovery of a second ultra-large structure in the remote universe has further challenged some of the basic assumptions about cosmology," writes SciTechDaily: The Big Ring on the Sky is 9.2 billion light-years from Earth. It has a diameter of about 1.3 billion light-years, and a circumference of about four billion light-years. If we could step outside and see it directly, the diameter of the Big Ring would need about 15 full Moons to cover it.

It is the second ultra-large structure discovered by University of Central Lancashire (UCLan) PhD student Alexia Lopez who, two years ago, also discovered the Giant Arc on the Sky. Remarkably, the Big Ring and the Giant Arc, which is 3.3 billion light-years across, are in the same cosmological neighborhood — they are seen at the same distance, at the same cosmic time, and are only 12 degrees apart on the sky. Alexia said: "Neither of these two ultra-large structures is easy to explain in our current understanding of the universe. And their ultra-large sizes, distinctive shapes, and cosmological proximity must surely be telling us something important — but what exactly?

"One possibility is that the Big Ring could be related to Baryonic Acoustic Oscillations (BAOs). BAOs arise from oscillations in the early universe and today should appear, statistically at least, as spherical shells in the arrangement of galaxies. However, detailed analysis of the Big Ring revealed it is not really compatible with the BAO explanation: the Big Ring is too large and is not spherical." Other explanations might be needed, explanations that depart from what is generally considered to be the standard understanding in cosmology...

And if the Big Ring and the Giant Arc together form a still larger structure then the challenge to the Cosmological Principle becomes even more compelling... Alexia said, "From current cosmological theories we didn't think structures on this scale were possible. "
Possible explanations include a Conformal Cyclic Cosmology, or the effect of cosmic strings passing through...

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

"A Canonical engineer has been experimenting with implementing a Linux scheduler within the Rust programming language..." Phoronix reported Monday, "that works via sched_ext for implementing a scheduler using eBPF that can be loaded during run-time."

The project was started "just for fun" over Christmas, according to a post on X by Canonical-based Linux kernel engineer Andrea Righi, adding "I'm pretty shocked to see that it doesn't just work, but it can even outperform the default Linux scheduler (EEVDF) with certain workloads (i.e., gaming)." Phoronix notes the a YouTube video accompanying the tweet shows "a game with the scx_rustland scheduler outperforming the default Linux kernel scheduler while running a parallel kernel build in the background."

"For sure the build takes longer," Righi acknowledged in a later post. "This scheduler doesn't magically makes everything run faster, it simply prioritizes more the interactive workloads vs CPU-intensive background jobs." Righi followed up by adding "And the whole point of this demo was to prove that, despite the overhead of running a scheduler in user-space, we can still achieve interesting performance, while having the advantages of being in user-space (ease of experimentation/testing, reboot-less updates, etc.)"

Wednesday Righi added some improvements, posting that "Only 19 lines of code (comments included) for ~2x performance improvement on SMT isn't bad... and I spent my lunch break playing Counter Strike 2 to test this patch..."

And work seems to be continuing, judging by a fresh post from Righi on Thursday. "I fixed virtme-ng to run inside Docker and used it to create a github CI workflow for sched-ext that clones the latest kernel, builds it and runs multiple VMs to test all the scx schedulers. And it does that in only ~20min. I'm pretty happy about virtme-ng now."

The Hubble Space Telescope's discovery of GN-z11 in 2016 marked it as the most distant galaxy known at that time, notable for its unexpected luminosity despite its ancient formation just 400 million years after the Big Bang. Now, in a paper published in Nature, astrophysicist Roberto Maiolino proposes that this brightness could be due to a supermassive black hole, challenging current understanding of early black hole formation and growth. NPR reports: This wasn't just any black hole. First -- assuming that the black hole started out small -- it could be devouring matter at a ferocious rate. And it would have needed to do so to reach its massive size. "This black hole is essentially eating the [equivalent of] an entire Sun every five years," says Maiolino. "It's actually much higher than we thought could be feasible for these black holes." Hence the word "vigorous" in the paper's title. Second, the black hole is 1.6 million times the mass of our Sun, and it was in place just 400 million years after the dawn of the universe. "It is essentially not possible to grow such a massive black hole so fast so early in the universe," Maiolino says. "Essentially, there is not enough time according to classical theories. So one has to invoke alternative scenarios."

Here's scenario one -- rather than starting out small, perhaps supermassive black holes in the early universe were simply born big due to the collapse of vast clouds of primordial gas. Scenario two is that maybe early stars collapsed to form a sea of smaller black holes, which could have then merged or swallowed matter way faster than we thought, causing the resulting black hole to grow quickly. Or perhaps it's some combination of both. In addition, it's possible that this black hole is harming the growth of the galaxy GN-z11. That's because black holes radiate energy as they feed. At such a high rate of feasting, this energy could sweep away the gas of the host galaxy. And since stars are made from gas, it could quench star formation, slowly strangling the galaxy. Not to mention that without gas, the black hole wouldn't have anything to feed on and it too would die.

"It's the third all-private astronaut mission to the International Space Station," writes NASA — and they're expected to start boarding within the next hour!

Watch it all on the official stream of NASA TV.

More details from Ars Technica: The four-man team lifted off from NASA's Kennedy Space Center in Florida aboard a SpaceX Falcon 9 rocket Thursday, kicking off a 36-hour pursuit of the orbiting research laboratory. Docking is scheduled for Saturday morning. This two-week mission is managed by Houston-based Axiom Space, which is conducting private astronaut missions to the ISS as a stepping stone toward building a fully commercial space station in low-Earth orbit by the end of this decade.

Axiom's third mission, called Ax-3, launched at 4:49 pm EST (21:49 UTC) Thursday. The four astronauts were strapped into their seats inside SpaceX's Dragon Freedom spacecraft atop the Falcon 9 rocket. This is the 12th time SpaceX has launched a human spaceflight mission, and could be the first of five Dragon crew missions this year.
NASA reports that the crew "will spend about two weeks conducting microgravity research, educational outreach, and commercial activities aboard the space station." NASA Administrator Bill Nelson said "During their time aboard the International Space Station, the Ax-3 astronauts will carry out more than 30 scientific experiments that will help advance research in low-Earth orbit. As the first all-European commercial astronaut mission to the space station, the Ax-3 crew is proof that the possibility of space unites us all...."

The Dragon spacecraft will dock autonomously to the forward port of the station's Harmony module as early as 4:19 a.m. [EST] Saturday. Hatches between Dragon and the station are expected to open after 6 a.m. [EST], allowing the Axiom crew to enter the complex for a welcoming ceremony and start their stay aboard the orbiting laboratory.... The Ax-3 astronauts are expected to depart the space station Saturday, February 3, pending weather, for a return to Earth and splashdown at a landing site off the coast of Florida.