Newsweek writes that the missing atmosphere of Mars "may be locked up in the planet's clay-rich surface, a new study by MIT geologists has suggested." According to the researchers, ancient water trickling through Mars' rocks could have triggered a series of chemical reactions, converting CO2 into methane and trapping the carbon in clay minerals for billions of years...

The dominant explanation relies on an interaction between the sun's rays and gases in the atmosphere. Mars lost its protective magnetic field billions of years ago, likely allowing high-energy solar particles to strike the upper atmosphere, kicking molecules off into space, according to NASA... But this might not be the whole story. The researchers focused on a type of clay mineral called smectite, known for its ability to trap carbon. These minerals, abundant on Mars, contain tiny folds that can store carbon molecules for aeons. The study was published in the journal Science Advances.

"There is plenty of evidence for a thick clay layer on the Martian surface. Almost 80 percent of satellite spectra detect these high-surface-area clay minerals on the Martian surface. Clay has been detected in craters as deep as 17 kilometers [10.5 miles]," [lead author Joshua] Murray said... Their model suggested that Mars' surface could contain up to 1.7 bar of CO2 — roughly 80 percent of its early atmospheric volume — sequestered as methane within clay deposits. This methane could still be present today, lying beneath the planet's dry and barren crust. "We know this process happens, and it is well-documented on Earth. And these rocks and clays exist on Mars," Oliver Jagoutz, the study's author, said in a statement. "So, we wanted to try and connect the dots."

The discovery that Mars' ancient atmosphere could be hidden within its surface clays offers a new perspective on the planet's history and raises intriguing possibilities for future exploration. For example, if the sequestered carbon could be recovered and converted, it could serve as a propellant for future space missions between Earth, Mars and beyond.
"In some ways, Mars' missing atmosphere could be hiding in plain sight," says the study's lead author — and the article adds that this raises some interesting possibilities.

"For example, if the sequestered carbon could be recovered and converted, it could serve as a propellant for future space missions between Earth, Mars and beyond..."

Scientific American has surprising news about the possibility of black holes the size of an atom but containing the mass of an asteroid — the so-called "primordial black holes" formed after the birth of the universe which could solve the ongoing mystery of the missing dark matter.

These atom-sized black holes "may fly through the inner solar system about once a decade, scientists say... And if they sneak by the moon or Mars, scientists should be able to detect them, a new study shows." If one of these black holes comes near a planet or large moon, it should push the body off course enough to be measurable by current instruments. "As it passes by, the planet starts to wobble," says Sarah R. Geller, a theoretical physicist now at the University of California, Santa Cruz, and co-author of the study, which was published on September 17 in Physical Review D. "The wobble will grow over a few years but eventually it will damp out and go back to zero."

Study team member Tung X. Tran, then an undergraduate student at the Massachusetts Institute of Technology, built a computer model of the solar system to see how the distance between Earth and nearby solar system objects would change after a black hole flyby. He found that such an effect would be most noticeable for Mars, whose distance scientists know within about 10 centimeters. For a black hole in the middle of the mass range, "we found that after three years the signal would grow to between one to three meters," Tran says. "That's way above the threshold of precision that we can measure." The Earth-Mars distance is particularly well tracked because scientists have been sending generations of probes and landers to the Red Planet...

In a coincidence, an independent team published a paper about its search for signs of primordial black holes flying near Earth in the same issue of Physical Review D. The researchers' simulations found that such signals could be detectable in orbital data from Global Navigation Satellite Systems, as well as gravimeters that measure variations in Earth's gravitational field.
"For decades physicists thought dark matter was likely to take the form of so-called weakly interacting massive particles (WIMPs)," the article points out. "Yet generations of ever more sensitive experiments meant to find these particles have come up empty."

California astrophysicist Kevork Abazajian tells the site that now in the scientific community, "Primordial black holes are really gaining popularity."

U.S. real estate developers "are having a hard time keeping up with demand," reports the Los Angeles Times, "as businesses in search of secure spots for their servers rent nearly every square foot that becomes available..." Construction of new data centers is at "extraordinary levels" driven by "insatiable demand," a recent report on the industry by real estate brokerage JLL found. "Never in my career of 25 years in real estate have I seen demand like this on a global scale," said JLL real estate broker Darren Eades, who specializes in data centers...

The biggest drivers are AI and cloud service providers that include some of the biggest names in tech, such as Amazon, Microsoft, Google and Oracle. With occupancy in conventional office buildings still down sharply following the impact of the COVID-19 pandemic and property values falling, data centers represent a rare ripe opportunity for real estate developers, who are pursuing opportunities in major markets like Los Angeles and less urban locales that are served by plentiful and preferably cheap power needed to run data centers. "If you can find a cluster of power to build a site, they'll come," Eades said of developers. Construction is taking place at an "extraordinary" pace nationwide and still not keeping up, the JLL data center report said. [Data center] "Vacancy declined to a record low of 3% at midyear due to insatiable demand and despite rampant construction."

Development increased more than sevenfold in two years, with the pipeline of new projects leveling off in the first half of 2024, a potential signal that the U.S. power grid cannot support development at a faster pace. But when projects currently under construction or planned are complete, the U.S. colocation market, in which businesses rent space in a data center owned by another company for their servers and other computing hardware, will triple in size from current levels... Real estate investors and landlords are being drawn into the market because demand from tenants is high and they are likely to renew their leases after shouldering the costs of setting up data centers. "They invest in their space and in your space and they tend to stick around longer," said Mark Messana, president of Downtown Properties, which owns offices in Los Angeles and San Francisco. "As we all know, the office market is struggling a little bit, so it's nice to be able to have some data customers in the mix..."

Power demand for computing is growing so intense that it threatens to strain the nation's electrical grid, sending users to remote locations where power is plentiful and preferably cheap. Data center developers are working in Alabama, the Dakotas and Indiana, "traditionally states that wouldn't have data centers," Eades said.
The article includes "the mother of all data centers" in the western U.S. — a 30-story building where "thousands of miles of undersea fiber-optic cables disappear into an ordinary-looking office tower." Once a prestigious location for businesses, "The recent departure of a law firm that had been in the building more than 50 years cleared out five floors that will quickly be re-leased to data tenants, said Eades, who represents the landlord..."

To retrofit the building for data centers, "two elevators were removed so the empty shafts could hold water pipes used to help keep the temperature cool enough for the heat-producing servers" — and developers are happy rents "can be double what they are at newer downtown office high-rises, according to real estate data provider CoStar...

"By 2030, data centers could account for as much as 11% of U.S. power demand — up from 3% now, according to analysts at Goldman Sachs."

"SpaceX has temporarily grounded its Falcon 9 rocket," reports Space.com, "after the vehicle experienced an issue on the Crew-9 astronaut launch for NASA." Crew-9 lifted off on Saturday (Sept. 28) from Florida's Cape Canaveral Space Force Station, sending NASA astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov aloft aboard the Crew Dragon capsule "Freedom" [for a 5-month stay, returning in February with Starliner's two astronauts]. Everything appeared to go well. The Falcon 9's first stage aced its landing shortly after liftoff, and the rocket's upper stage deployed Freedom into its proper orbit; the capsule is on track to arrive at the International Space Station (ISS) on Sunday afternoon (Sept. 29) as planned. But the upper stage experienced an issue after completing that job, SpaceX announced early Sunday morning.

"After today's successful launch of Crew-9, Falcon 9's second stage was disposed in the ocean as planned, but experienced an off-nominal deorbit burn. As a result, the second stage safely landed in the ocean, but outside of the targeted area. We will resume launching after we better understand root cause," SpaceX wrote in a post on X.

Indeed, a Falcon 9 had been scheduled to launch 20 broadband satellites for the company Eutelsat OneWeb from Vandenberg Space Force Base in California on Sunday night, but that liftoff has been postponed.

Last weekend Boeing announced that its CEO of Defense, Space, and Security "had left the company," according to Barrons. "Parting ways like this, for upper management, is the equivalent to firing," they write — though they add that setbacks on Starliner's first crewed test flight is "far too simple an explanation." Starliner might, however, have been the straw that broke the camel's back. [New CEO Kelly] Ortberg took over in early August, so his first material interaction with the Boeing Defense and Space business was the spaceship's failed test flight... Starliner has cost Boeing $1.6 billion and counting. That's lot of money, but not all that much in the context of the Defense business, which generates sales of roughly $25 billion a year.... [T]he overall Defense business has performed poorly of late, burdened by fixed price contracts that have become unprofitable amid years of higher than expected inflation. Profitability in the defense business has been declining since 2020 and started losing money in 2022. From 2022 to 2024 losses should total about $6 billion cumulatively, including Wall Street's estimates for the second half of this year.

Still, it felt like something had to give. And the change shows investors something about new CEO Ortberg. "At this critical juncture, our priority is to restore the trust of our customers and meet the high standards they expect of us," read part of an internal email sent to Boeing employees announcing the change. "Why his predecessor — David Calhoun — didn't pull this trigger earlier this year is a mystery," wrote Gordon Haskett analyst Don Bilson in a Monday note. "Can't leave astronauts behind."
"Ortberg's logic appears sound," the article concludes. "In recent years, Boeing has disappointed its airline and defense customers, including NASA...

"After Starliner, defense profitability, and the strike, Ortberg has to tackle production quality, production rates, and Boeing's ailing balance sheet. Boeing has amassed almost $60 billion in debt since the second tragic 737 MAX crash in March 2019."

Thanks to Slashdot reader Press2ToContinue for sharing the news.

Ars Technica reports NASA officials operating the International Space Station "are seriously concerned about a small Russian part of the station" — because it's leaking.

The "PrK" tunnel connecting a larger module to a docking port "has been leaking since September 2019... In February of this year NASA identified an increase in the leak rate from less than 1 pound of atmosphere a day to 2.4 pounds a day, and in April this rate increased to 3.7 pounds a day." A new report, published Thursday by NASA's inspector general, provides details not previously released by the space agency that underline the severity of the problem...

Despite years of investigation, neither Russian nor US officials have identified the underlying cause of the leak. "Although the root cause of the leak remains unknown, both agencies have narrowed their focus to internal and external welds," the report, signed by Deputy Inspector General George A. Scott, states. The plan to mitigate the risk is to keep the hatch on the Zvezda module leading to the PrK tunnel closed. Eventually, if the leak worsens further, this hatch might need to be closed permanently, reducing the number of Russian docking ports on the space station from four to three.

Publicly, NASA has sought to minimize concerns about the cracking issue because it remains, to date, confined to the PrK tunnel and has not spread to other parts of the station. Nevertheless, Ars reported in June that the cracking issue has reached the highest level of concern on the space agency's 5x5 "risk matrix" to classify the likelihood and consequence of risks to spaceflight activities. The Russian leaks are now classified as a "5" both in terms of high likelihood and high consequence.
"According to NASA, Roscosmos is confident they will be able to monitor and close the hatch to the Service Module prior to the leak rate reaching an untenable level. However, NASA and Roscosmos have not reached an agreement on the point at which the leak rate is untenable."

The article adds that the Space Station should reach its end of life by either 2028 or 2030, and NASA "intends to transition its activities in low-Earth orbit onto private space stations," and has funded Axiom Space, Blue Origin, and Voyager Space for initial development.

"There is general uncertainty as to whether any of the private space station operators will be ready in 2030."

Black hole jets, which spew near-light-speed particle beams, can trigger nearby white dwarf stars to explode by igniting hydrogen layers on their surfaces. "We don't know what's going on, but it's just a very exciting finding," said Alec Lessing, an astrophysicist at Stanford University and lead author of a new study describing the phenomenon, in an ESA release. Gizmodo reports: In the recent work -- set to publish in The Astrophysical Journal and is currently hosted on the preprint server arXiv -- the team studied 135 novae in the galaxy M87, which hosts a supermassive black hole of the same name at its core. M87 is 6.5 billion times the mass of the Sun and was the first black hole to be directly imaged, in work done in 2019 by the Event Horizon Telescope Collaboration. The team found twice as many novae erupting near M87's 3,000 light-year-long plasma jet than elsewhere in the galaxy. The Hubble Space Telescope also directly imaged M87's jet, which you can see below in luminous blue detail. Though it looks fairly calm in the image, the distance deceives you: this is a long tendril of superheated, near-light speed particles, somehow triggering stars to erupt.

Though previous researchers had suggested there was more activity in the jet's vicinity, new observations with Hubble's wider-view cameras revealed more of the novae brightening -- indicating they were blowing hydrogen up off their surface layers. "There's something that the jet is doing to the star systems that wander into the surrounding neighborhood. Maybe the jet somehow snowplows hydrogen fuel onto the white dwarfs, causing them to erupt more frequently," Lessing said in the release. "But it's not clear that it's a physical pushing. It could be the effect of the pressure of the light emanating from the jet. When you deliver hydrogen faster, you get eruptions faster." The new Hubble images of M87 are also the deepest yet taken, thanks to the newer cameras on Hubble. Though the team wrote in the paper that there's between a 0.1% to 1% chance that their observations can be chalked up to randomness, most signs point to the jet somehow catalyzing the stellar eruptions.

The European Space Agency (ESA) plans to launch a satellite into Earth's orbit in 2027 to watch it get wrecked as it reenters the atmosphere. From a report: The project is intended to help understand how exactly satellites break apart so that scientists can learn how to prevent the creation of more space debris. Space junk is becoming a bigger problem as we send more satellites into orbit, but there are efforts to try and address it. This mission is part of the ESA's Zero Debris Charter initiative to stop the creation of additional space debris by 2030. The mission is called the Destructive Reentry Assessment Container Object (DRACO), and the insides of the satellite will collect data as the craft gets destroyed during reentry into the atmosphere. It will also contain a 40-centimeter capsule designed to survive the destruction that will transmit the collected data as the capsule moves toward the ocean.

Ars Technica's Dan Goodin reports: Last week, NIST released its second public draft of SP 800-63-4, the latest version of its Digital Identity Guidelines. At roughly 35,000 words and filled with jargon and bureaucratic terms, the document is nearly impossible to read all the way through and just as hard to understand fully. It sets both the technical requirements and recommended best practices for determining the validity of methods used to authenticate digital identities online. Organizations that interact with the federal government online are required to be in compliance. A section devoted to passwords injects a large helping of badly needed common sense practices that challenge common policies. An example: The new rules bar the requirement that end users periodically change their passwords. This requirement came into being decades ago when password security was poorly understood, and it was common for people to choose common names, dictionary words, and other secrets that were easily guessed.

Since then, most services require the use of stronger passwords made up of randomly generated characters or phrases. When passwords are chosen properly, the requirement to periodically change them, typically every one to three months, can actually diminish security because the added burden incentivizes weaker passwords that are easier for people to set and remember. Another requirement that often does more harm than good is the required use of certain characters, such as at least one number, one special character, and one upper- and lowercase letter. When passwords are sufficiently long and random, there's no benefit from requiring or restricting the use of certain characters. And again, rules governing composition can actually lead to people choosing weaker passcodes.

The latest NIST guidelines now state that:
- Verifiers and CSPs SHALL NOT impose other composition rules (e.g., requiring mixtures of different character types) for passwords and
- Verifiers and CSPs SHALL NOT require users to change passwords periodically. However, verifiers SHALL force a change if there is evidence of compromise of the authenticator. ("Verifiers" is bureaucrat speak for the entity that verifies an account holder's identity by corroborating the holder's authentication credentials. Short for credential service provider, "CSPs" are a trusted entity that assigns or registers authenticators to the account holder.) In previous versions of the guidelines, some of the rules used the words "should not," which means the practice is not recommended as a best practice. "Shall not," by contrast, means the practice must be barred for an organization to be in compliance. Several other common sense practices mentioned in the document include: 1. Verifiers and CSPs SHALL require passwords to be a minimum of eight characters in length and SHOULD require passwords to be a minimum of 15 characters in length.
2. Verifiers and CSPs SHOULD permit a maximum password length of at least 64 characters.
3. Verifiers and CSPs SHOULD accept all printing ASCII [RFC20] characters and the space character in passwords.
4. Verifiers and CSPs SHOULD accept Unicode [ISO/ISC 10646] characters in passwords. Each Unicode code point SHALL be counted as a single character when evaluating password length.
5. Verifiers and CSPs SHALL NOT impose other composition rules (e.g., requiring mixtures of different character types) for passwords.
6. Verifiers and CSPs SHALL NOT require users to change passwords periodically. However, verifiers SHALL force a change if there is evidence of compromise of the authenticator.
7. Verifiers and CSPs SHALL NOT permit the subscriber to store a hint that is accessible to an unauthenticated claimant.
8. Verifiers and CSPs SHALL NOT prompt subscribers to use knowledge-based authentication (KBA) (e.g., "What was the name of your first pet?") or security questions when choosing passwords.
9. Verifiers SHALL verify the entire submitted password (i.e., not truncate it).

"The New York Times reports that astronomers have discovered a black hole spitting energy across 23 million light-years of intergalactic space (source paywalled; alternative source)," writes longtime Slashdot reader fahrbot-bot. From the report: Two jets, shooting in opposite directions, compose the biggest lightning bolt ever seen in the sky -- about 140 times as long as our own Milky Way galaxy is wide, and more than 10 times the distance from Earth to Andromeda, the nearest large spiral galaxy. Follow-up observations with optical telescopes traced the eruption to a galaxy 7.5 billion light-years away that existed when the universe was less than half its current age of 14 billion years. At the heart of that galaxy was a black hole spewing energy equivalent to the output of more than a trillion stars.

"The Milky Way would be a little dot in these two giant eruptions," said Martijn Oei, a postdoctoral researcher at the California Institute of Technology. Dr. Oei led the team that made the discovery, which was reported in Nature on Sept. 18 and announced on the journal's cover with an illustration reminiscent of a "Star Wars" poster. The astronomers have named the black hole Porphyrion, after a giant in Greek mythology -- a son of Gaia -- who fought the gods and lost. The discovery raises new questions of how such black holes could affect the evolution and structure of the universe.

New research suggests that Mars' missing atmosphere may have been absorbed by minerals in the planet's clays, in a process similar to geological reactions on Earth. It may explain Mars' loss of its atmosphere and potential to support life, with methane possibly still present and usable as an energy source. Longtime Slashdot reader Baron_Yam writes: Conditions on early Mars were highly likely to have had CO2 carried down into the ground by water, where reactions with rock resulted in iron oxide (and Mars' rust-red surface) and released hydrogen, which in turn reacted with the water to form methane that was bound in smectite clays. It's all still there, just under the surface. The research has been published in the journal Science Advances.

Meta unveiled prototype AR glasses codenamed Orion on Wednesday, featuring a 70-degree field of view, Micro LED projectors, and silicon carbide lenses that beam graphics directly into the wearer's eyes. In an interview with The Verge, CEO Mark Zuckerberg demonstrated the device's capabilities, including ingredient recognition, holographic gaming, and video calling, controlled by a neural wristband that interprets hand gestures through electromyography.

Despite technological advances, Meta has shelved Orion's commercial release, citing manufacturing complexities and costs reaching $10,000 per unit, primarily due to difficulties in producing the silicon carbide lenses. The company now aims to launch a refined, more affordable version in coming years, with executives hinting at a price comparable to high-end smartphones and laptops.

Zuckerberg views AR glasses as critical to Meta's future, potentially freeing the company from its reliance on smartphone platforms controlled by Apple and Google. The push into AR hardware comes as tech giants and startups intensify competition in the space, with Apple launching Vision Pro and Google partnering with Magic Leap and Samsung on headset development.

Scientists have proposed a method to deflect dangerous asteroids using nuclear explosions, not by directly blowing them up, but by detonating a bomb above the surface to create an X-ray burst that vaporizes part of the asteroid and changes its course. Experiments using the Z machine at Sandia National Laboratories simulated this process, showing that it could potentially redirect even large asteroids to prevent catastrophic impacts on Earth. Space.com reports: In a new study, the researchers employed the Z machine at Sandia National Laboratory, the most powerful laboratory source of radiation in the world. It generates powerful electric pulses, magnetic fields and X-rays to find out how materials react under high pressures and temperatures. "At present, there is only one way to generate an intense enough X-ray burst to do an experiment like this, and that's using the Z Machine," said [Nathan Moore, a physicist at Sandia National Laboratories in Albuquerque, N.M.]. The scientists used electrical pulses from the Z machine to generate powerful magnetic fields. These in turn compressed argon gas to generate plasma, the same form of matter that makes up lightning and stars. This argon plasma produced the X-ray burst the researchers needed to simulate a similar one from a nuclear explosion.

"You have to concentrate a lot of power, about 80 trillion watts, into a very small space, the size of a pencil lead, and very quickly, about 100 billionths of second, to generate a hot enough argon plasma, several millions of degrees, to make a powerful enough X-ray burst to heat the asteroid material surface to tens of thousands of degrees to give it enough push," Moore said. The scientists hung up a pair of targets in a vacuum, each 0.47 inches (12 millimeters) wide -- one made of quartz, the other of fused silica. These materials are similar in composition to known asteroids. Previous attempts to study various asteroid deflection strategies all held targets fixed in place, "which wasn't very realistic," Moore said. "After all, asteroids in outer space aren't attached to anything. Besides, how would a mock asteroid accelerate realistically if it was anchored down?"

To overcome this problem, the researchers devised what they called "X-ray scissors." They hung the targets up using thin metal foil just 13 microns thick, or about one-eighth the thickness of an average human hair. This foil vaporized when the X-rays hit it, freeing the targets to accelerate naturally in space. The X-ray pulses generated vapor plumes from each target and accelerated each one to about 155 mph (250 km/h), matching computational predictions. "The ability to deflect miniature asteroids in a laboratory using the Z Machine is unlike anything else you can do anywhere else on Earth," Moore said. Scaling these findings up to a 2.5-mile-wide (4 kilometer) asteroid, with a 1 megaton nuclear bomb exploding about 1.25 miles (2 km) from its surface, the researchers suggested the resulting push could help deflect dangerous asteroids away from Earth.

"For reference, a 4-km [2.5-mile] asteroid is predicted to be large enough to cause global devastation and possible disruption of civilization, according to the NASA Planetary Defense Strategy and Action Plan," Moore said. Moore noted that asteroids come in a variety of compositions. "This new technique can be used to investigate the deflection response of different asteroid materials," he said. "Understanding how different asteroid materials vaporize and deflect will be critical for preparing for a planetary defense mission, should the need arise." The study has been published in the journal Nature Physics.

silverjacket writes: A feature for The New Yorker describes a plan to use robots to mine lunar materials and build a radio telescope on the far side of the moon that will help answer questions about the early universe. An excerpt from the story: he dream of a lunar telescope dates to the nineteen-sixties. The moon has the advantage of being hundreds of thousands of miles away from earthly electronics; on the far side of the moon, in particular, there's virtually no noise from human technology or the Earth's magnetosphere. After the Apollo landings, however, interest in the moon waned. Jack Burns, an astrophysicist who is now at the University of Colorado Boulder, has been advocating for a moon-based telescope since 1984. "I never, never would have guessed that it would take this long," he told me. "I just won't accept no for an answer." Today, Burns is the chief scientist of FarView, as well as the primary investigator of a sort of mini-FarView: FARSIDE, which would have one or two hundred antennas instead of a hundred thousand.

If FarView is built, it would be able to detect some of the oldest light in existence. The universe began 13.8 billion years ago as a dense, fast-expanding soup of matter and energy; around three hundred and eighty thousand years later, it had cooled enough for hydrogen atoms to hold together. After that came the Cosmic Dark Ages: millions of years without stars or galaxies, a period we know very little about. But hydrogen occasionally releases light with a wavelength of twenty-one centimetres -- radio waves. Some of that light is still around.

Because twenty-one-centimetre radiation is stretched by the steady expansion of the universe -- it's now tens to hundreds of metres long -- scientists can figure out how old it is, and how far away. (The longer the wavelength, the older the light and the more distant its source.) This means that if scientists can build a radio telescope on the moon, they will be able to create a three-dimensional picture of the early universe.

schwit1 shares a report SpaceNews with the caption: "Failures aren't failures if you learn from them." From the report: Chinese commercial rocket firm Deep Blue Aerospace conducted a first-stage rocket hop test Sunday, experiencing a partial failure during the final moments of landing. Deep Blue Aerospace carried out the test at 1:40 a.m. Eastern (0540 UTC) Sept. 22 at the firm's Ejin Banner Spaceport in Inner Mongolia using a Nebula-1 rocket first stage. Footage of the vertical liftoff, vertical landing test shows the rocket ascending to a predetermined altitude before shutting off two of the three engines used for the 179-second flight. Landing legs deployed as planned, and the stage hovered above its planned landing spot. However an anomaly during the final engine shutdown phase led to a higher-than-expected landing altitude, leading to partial damage. You can watch the landing attempt and explosion here.

A startup called Amogy has successfully converted a 67-year-old diesel tugboat to run on clean ammonia, marking a significant milestone in the transition to zero-emissions propulsion in the maritime industry. The Associated Press reports: Amogy's system uses ammonia to make hydrogen for a fuel cell, making the tug an electric-powered ship. The International Maritime Organization set a target for international shipping to reach net-zero greenhouse gas emissions by, or close to, 2050. Shipping needs to cut emissions rapidly and there are no solutions widely available today to fully decarbonize deep-sea shipping, according to the Global Maritime Forum, a nonprofit that works closely with the industry. There is a lot of interest in ammonia as an alternative fuel because the molecule doesn't contain carbon, said Jesse Fahnestock, who leads the forum's decarbonization work. Ammonia is widely used for fertilizer, so there is already infrastructure in place for handling and transporting it. Ton for ton, it can hold more energy than hydrogen, and it can be stored and distributed more easily.

The tugboat ran on green ammonia produced by renewable electricity. A 2,000-gallon tank fits in the old fuel tank space, for a 10-to 12-hour day at sea. It splits liquid ammonia into its constituents, hydrogen and nitrogen, then funnels the hydrogen into a fuel cell that generates electricity for the vessel without carbon emissions. The process does not burn ammonia like a combustion engine would, so it primarily produces nitrogen in its elemental form and water as emissions. The company says there are trace amounts of nitrogen oxides that it's working to completely eliminate.

Amogy first used ammonia to power a drone in 2021, then a tractor in 2022, a semi-truck in 2023, and now the tugboat to prove the technology. Woo said their system is designed to be used on vessels as small as the tugboat and as large as container ships, and could also make electricity on shore to replace diesel generators for data centers, mining and construction, or other heavy industries. The company has raised about $220 million. Amazon, an enterprise with immense needs for shipping, is among the investors. Nick Ellis, principal of Amazon's $2 billion Climate Pledge Fund, said the company is excited and impressed by what Amogy is doing. By investing, Amazon can show ship owners and builders it wants its goods delivered with zero emissions, he added.

In a rare blog post today, OpenAI CEO Sam Altman laid out his vision of the AI-powered future, which he refers to as "The Intelligence Age." Among the most notable claims, Altman said superintelligence might be achieved in "a few thousand days." VentureBeat reports: Specifically, Altman argues that "deep learning works," and can generalize across a range of domains and difficult problem sets based on its training data, allowing people to "solve hard problems," including "fixing the climate, establishing a space colony, and the discovery of all physics." As he puts it: "That's really it; humanity discovered an algorithm that could really, truly learn any distribution of data (or really, the underlying "rules" that produce any distribution of data). To a shocking degree of precision, the more compute and data available, the better it gets at helping people solve hard problems. I find that no matter how much time I spend thinking about this, I can never really internalize how consequential it is."

In a provocative statement that many AI industry participants and close observers have already seized upon in discussions on X, Altman also said that superintelligence -- AI that is "vastly smarter than humans," according to previous OpenAI statements -- may be achieved in "a few thousand days." "This may turn out to be the most consequential fact about all of history so far. It is possible that we will have superintelligence in a few thousand days (!); it may take longer, but I'm confident we'll get there." A thousand days is roughly 2.7 years, a time that is much sooner than the five years most experts give out.

Steam has broken its record for the most PC players online, with 38,366,479 concurrent gamers. As IGN notes, that figure is a million more than the previous record, set last month. From the report: So, what helped propel Steam to new heights over the weekend? All the usual suspects were in the top 10 most-played games on Valve's platform, including Counter-Strike 2, Dota 2, Banana (yes, Banana has yet to split), and PUBG, with this year's Black Myth: Wukong, Satisfactory 1.0, Space Marine 2, and Valve's own Deadlock putting in work. Last week saw PlayStation exclusives God of War Ragnarok and Final Fantasy 16 both launch on Steam for the first time, which will have provided a modest boost, too.

The popularity of Steam is gradually increasing as Valve's vice-like grip on the PC market tightens ever further. Competitors such as the Epic Games Store and CD Projekt's GOG occupy a relatively small piece of the PC gaming pie, with Steam continuing to enjoy record-breaking success even amid perceived downturns in the video game industry. The release of Steam Deck is yet another platform on which Steam operates.

An anonymous reader quotes a report from TechCrunch: With the perennial tensions between proprietary and open source software (OSS) unlikely to end anytime soon, a $3 billion startup is throwing its weight behind a new licensing paradigm -- one that's designed to bridge the open and proprietary worlds, replete with new definition, terminology, and governance model. Developer software company Sentry recently introduced a new license category dubbed "fair source." Sentry is an initial adopter, as are some half dozen others, including GitButler, a developer tooling company from one of GitHub's founders. The fair source concept is designed to help companies align themselves with the "open" software development sphere, without encroaching into existing licensing landscapes, be that open source, open core, or source-available, and while avoiding any negative associations that exist with "proprietary." However, fair source is also a response to the growing sense that open source isn't working out commercially.

"Open source isn't a business model -- open source is a distribution model, it's a software development model, primarily," Chad Whitacre, Sentry's head of open source, told TechCrunch. "And in fact, it places severe limits on what business models are available, because of the licensing terms." Sure, there are hugely successful open source projects, but they are generally components of larger proprietary products. Businesses that have flown the open source flag have mostly retreated to protect their hard work, moving either from fully permissive to a more restrictive "copyleft" license, as the likes of Element did last year and Grafana before it, or ditched open source altogether as HashiCorp did with Terraform. "Most of the world's software is still closed source," Whitacre added. "Kubernetes is open source, but Google Search is closed. React is open source, but Facebook Newsfeed is closed. With fair source, we're carving a space for companies to safely share not just these lower-level infrastructure components, but share access to their core product." Further reading: As Companies Try 'Open Source Rug Pull', Open Source Foundations Considered Helpful

In the antitrust trial alleging Google had an ad-selling monopoly, "government lawyers have said some of their strongest evidence is in Google's own internal communications," reports the Wall Street Journal: [In 2010] a new crop of ad-tech companies were threatening Google's bottom line. "One way to make sure we don't get further behind in the market is picking up the one with the most traction and parking it somewhere..." [wrote YouTube Chief Executive Neal Mohan, who previously ran Google's display-ads business]. Google ended up buying one such company, AdMeld, for $400 million in 2011. Google shut down AdMeld two years later, after incorporating some of the startup's technology into its ad exchange, known commonly as AdX.

The Justice Department argued that AdMeld was part of a larger trend: Google acquiring nascent rivals to corner the market and then locking customers into using its products by conditioning access to one software tool on them paying for another... In a 2016 email introduced by the government, Google executive Jonathan Bellack asked colleagues: "Is there a deeper issue with us owning the platform, the exchange, and a huge network? The analogy would be if Goldman or Citibank owned the NYSE [New York Stock Exchange]...." The Justice Department also cited a 2018 email from another then-executive, Chris LaSala, who raised concerns internally over the 20% cut that Google takes from many of its AdX customers, saying Google was extracting "irrationally high rent" from users. "I don't think there is 20% of value in comparing two bids," wrote LaSala. "AdX is not providing additional liquidity to the market. It is simply running the auction."

Another former Google executive, Eisar Lipkovitz, testified that Google's omnipresence in ad-tech gives rise to conflicts of interest. Lipkovitz was rebuffed when he tried to get Google to lower the cut it took from AdX, he testified in a prerecorded deposition. The Justice Department finished presenting its case on Friday. Other witnesses included Google customers. One was Stephanie Layser, a former News Corp executive, who said she felt she had no choice but to use Google technology because the search giant has such market power that switching to another ad server would have meant losing out on millions in advertising revenue.
Google's lawyer countered that "There will be no witness in this case who can say with clarity where this industry is going in the next five years."

Or, as the Wall Street Journal puts it, "It makes no sense to focus on display ads, Google argues, when the industry is shifting to apps, social media and streaming services. Far from monopolizing the space, Google is actually losing ground, Google lawyer Karen Dunn said in her opening trial statement..."