An anonymous reader quotes a report from TechCrunch: The European Union is forging ahead with plans for a constellation of internet satellites to rival Elon Musk-owned Starlink, after signing a $11.1 billion deal to launch nearly 300 satellites into low- and medium-Earth orbits by 2030. The bloc wants the space tech to boost its digital sovereignty by providing secure comms to governments.

First announced in 2022, Iris^2 (Infrastructure for Resilience, Interconnectivity and Security by Satellite) is a public-private partnership whose initial cost estimate (6 billion euros) leapt 76% through a fraught negotiation process. In the end, the program will be 61% funded from the public purse; an industry consortium called SpaceRise, selected in October, is making up the difference. This grouping includes French satellite giant Eutelsat, which merged with European rival OneWeb back in 2022.

Does space need environmentalists, asks the headline from a new article in Noema magazine. "As astrophysicist Neil deGrasse Tyson notes, the first trillionaire will be made in space.

"But amid such promising developments are worries among some scientists and environmentalists who fear humans will repeat the errors that resource extraction has wrought on Earth..." If we have mining in space, do we need a preemptive anti-mining campaign to protect our solar system from rampant exploitation before it is too late? Earth-bound environmental advocates and astrobiologists alike have concluded that, indeed, we need an environmental movement in space... [Daniel Capper, an adjunct professor of philosophy at the Metropolitan State University of Denver] is part of a small but growing chorus of intellectuals who argue that we must carve out protections sooner rather than later — backed by a concrete theoretical and legal framework — for certain areas of the solar system. The United Nations has convened a working group on the use of space resources, and the International Astronomical Union has set up a different working group to delineate places of special scientific value on the moon.

Some researchers have proposed creating a planetary park system in space, while others advocate for a circular space economy that minimizes the need for additional resources. The nonprofit For All Moonkind is advocating for the protection of space sites of cultural importance, like the Apollo 11 landing site. And the Astra Carta, backed by Britain's King Charles, advocates for making sustainability a key component of space activities... [Martin Elvis, an astronomer with the Center for Astrophysics at Harvard University and the Smithsonian Institution] proposed setting aside 7/8ths of the solar system as wilderness, in a paper published in 2019 in Acta Astronautica that he coauthored with King's College London philosopher Tony Milligan...

[T]he lack of norms — clear rules and regulations around space — is one of the most pressing threats to the space environment, advocates say. What might happen, for example, if the United States simply began scooping up asteroids for platinum, or if Blue Origin established a mine at the lunar South Pole without securing consensus from others? "We do not have good answers to those questions right now," Hanlon said. "This is something that I'm really concerned about." Much of the legal basis for the space environmentalism movement is currently contained in just one article of the Outer Space Treaty (OST), said Christopher Johnson, the director of legal affairs and space law at the Secure World Foundation. Article 9 of the OST contains the harmful contamination language and says actors must pay "due regard" to the interests of others. It also stipulates that "harmful interference" with the activities of others must be avoided. Those phrases could be interpreted in multiple ways and have yet to be meaningfully tested.
The article cites two concrete proposals moving forward:

• "The Artemis Accords, a set of principles for exploring and using resources in outer space established by the U.S. in 2020, argues that resource extraction does not constitute national appropriation, and is therefore allowed by the OST. It's an initial step toward securing a consensus on space regulations, and one that's to date received the signatures of 47 nations including Japan, the United Kingdom, France and Germany (though China and Russia are notably absent). Signing the Artemis Accords allows nations to participate in the Artemis program, and also play a role in shaping future norms in space, Johnson said, a potentially lucrative incentive... "

• "The UN's COPUOS, the same one responsible for the OST and the Moon Agreement, published a working paper in 2019 that laid out voluntary guidelines for the long-term sustainability of outer space activities. Recommendations from the committee's working group on principles for the use of space resources are due in 2027, and Johnson said draft guidelines are likely to emerge in early 2025."

"One day, our descendants might live among the stars," the article concludes. "But we must ask ourselves, what kind of place will they inherit?"

Long-time Slashdot reader smooth wombat writes: Scientist have unlocked the secret to a bacteria dubbed 'Conan the Bacterium' which is listed in the Guinness Book of World Records as the most radiant-resistant life-form. Deinococcus radiodurans can withstand radiation doses 28,000 times greater than that which would kill a human [and every other organism]. In addition, this bacteria can survive on the outside of the International Space Station for three years. It can also withstand acid, cold, and dehydration (a D&D player's worst nightmare). All of this protection comes down to a unique antioxidant.

The antioxidant is formed by a simple group of small molecules called metabolites, including manganese, phosphate and a small peptide, or molecule, of amino acids.
CNN reports: The antioxidant is formed by a simple group of small molecules called metabolites, including manganese, phosphate and a small peptide, or molecule, of amino acids. Together, this powerful trilogy is more effective in protecting against radiation than manganese combined with just one of the other components, according to a new study published Monday in the Proceedings of the National Academy of Sciences.

The findings could be used to protect astronauts from high doses of cosmic radiation on future deep-space missions across our solar system, according to the study authors.

"We've long known that manganese ions and phosphate together make a strong antioxidant, but discovering and understanding the 'magic' potency provided by the addition of the third component is a breakthrough," said study coauthor Brian Hoffman, the Charles E. and Emma H. Morrison Professor of Chemistry and professor of molecular biosciences at Northwestern University's Weinberg College of Arts and Sciences, in a statement...

On Earth, the antioxidant could be used for protection against accidents that release radiation.

The Washington Post reports: Years before the internet was created and the first smartphones buzzed to life, an educational platform called PLATO offered a glimpse of the digital world to come. Launched in 1960 at the University of Illinois at Urbana-Champaign [UIUC], it was the first generalized, computer-based instructional system, and grew into a home for early message boards, emails, chatrooms, instant messaging and multiplayer video games.

The platform's developer, Donald Bitzer, was a handball-playing, magic-loving electrical engineer who opened his computer lab to practically everyone, welcoming contributions from Illinois undergrads as well as teenagers who were still in high school. Dr. Bitzer, who died Dec. 10 at age 90, spent more than two decades working on PLATO, managing its growth and development while also pioneering digital technologies that included the plasma display panel, a forerunner of the ultrathin screens used on today's TVs and tablets. "All of the features you see kids using now, like discussion boards or forums and blogs, started with PLATO," he said during a 2014 return to Illinois, his alma mater. "All of the social networking we take for granted actually started as an educational tool."
Long-time Slashdot reader theodp found another remembrance online. "Ray Ozzie, whose LinkedIn profile dedicates more space to describing his work as a PLATO developer as a UIUC undergrad than it does to his later successes as a creator of Lotus Notes and as Microsoft's Chief Software Architect, offers his own heartfelt mini-obit." Ozzie writes: It's difficult to adequately convey how much impact he had on so many, and I implore you to take a few minutes to honor him by reading a bit about him and his contributions. Links below. As an insecure young CS student at UIUC in 1974, Paul Tenczar, working for/with Don, graciously gave me a chance as a jr. systems programmer on the mind-bogglingly forward thinking system known as PLATO. A global, interactive system for learning, collaboration, and community like no other at the time. We were young and in awe of how Don led, inspired, and managed to keep the project alive. I was introverted; shaking; stage fright. Yeah I could code. But how could such a deeply technical engineer assemble such a strong team to execute on such a totally novel and inspirational vision, secure government funding, and yet also demo the product on the Phil Donahue show?

"Here's to the crazy ones. The misfits. The rebels. The troublemakers. The ones who see things differently. They're not fond of rules." You touched so many of us and shaped who we became and the risks we would take, having an impact well beyond that which you created. You made us think and you made us laugh. I hope we made you proud."

BrianFagioli shares a report from BetaNews: As we close out 2024, we Linux enthusiasts are once again looking ahead to what the future holds. While Linux has long been the unsung hero of technology, powering servers, supercomputers, and the cloud, it's also a dominant force in the consumer space, even if many don't realize it. With Android leading the way as the most widely used Linux-based operating system, 2025 is shaping up to be another landmark year for the open source world Here are the predictions mentioned in the article:

- Linux will continue to dominate the enterprise sector
- Linux will further solidify its role in powering cloud infrastructure, with major providers like AWS and Google Cloud relying on it.
- Gaming on Linux is set to grow in 2025
- Linux will play a major role in AI development
- Linux's appeal to developers and tech enthusiasts will remain strong
- The open source movement will grow stronger

What additional predictions do you have for Linux in 2025?

25 years ago today, the late, great Suck.com played a prank on Slashdot. Their daily column of pop-culture criticism was replaced by... Suckdot, a parody site satirically filled with Slashdot-style headlines like "Linux Possibly Defamed Somewhere." RabidZelot was one of a bunch to report: "In Richmond, California, this afternoon, this dude said something bad about Linux at the Hilltop Mall near the fountains right after the first showing of Phantom Menace let out. He was last seen heading towards Sears and has a 'Where Do You Want to Go Today?' T-shirt and brown hair. Let us know when you spot him."

( Read More... | 0 of 72873 comments)
There's more Slashdot-style news blurbs like "Red Hat Reports Income". (In which Red Hat founder Bob Young finds a quarter on the way to the conference room, and adds it to the company's balance sheet...) Its list of user-submitted "Ask Suckdot" questions include geek-mocking topics like "Is Overclocking Worth That Burning Smell?" and "HOW DO I TURN OFF SHIFT_LOCK?" And somewhere there's even a parody of Jon Katz (an early contributor to Slashdot's content) — though clicking "Read More" on the essay leads to a surprising message from the parodist admitting defeat. "Slashdot has roughly 60 million links on its front page. I'm simply not going to waste any more of my life making fun of each and every one of them. Half the time you can't tell the real Slashdot from the parody anyway."

Suck.com was a fixture in the early days of the web, launched in 1995 (and pre-dating the launch of Slashdot by two years). It normally published link-heavy commentary every weekday for nearly six years. Contributing writer Greg Knauss was apparently behind much of the Suckdot parody — even taking a jab at Slashdot's early online podcast, "Geeks in Space" (1999-2001). [Suckdot informs its readers in 1999 that "The latest installment of Geeks Jabbering at a Mic is up..."] Other Suckdot headlines?

• Minneapolis-St. Paul Star-Tribune Uses Words "Red" and "Hat" in Article
• BSD Repeatedly Ignored
• DVD Encryption Cracked: Godzilla for Everybody!
• Linus Ascends Bodily Into Heaven
• iMac: Ha Ha Ha Ha Wimp

There were no hard feelings. Seven months later Slashdot was even linking to Greg Knauss's Suck.com essay proclaiming that "Mozilla is dead, or might as well be..."

So whatever happened to Suck.com? Though it stopped publishing in 2001, an outpouring of nostalgia in 2005 apparently prompted its owners at Lycos.com to continue hosting its content through 2018. (This unofficial history notes that one fan scrambling to archive the site was Aaron Swartz.) Though it's not clear what happened next, here in 2024 its original domain is now up for sale — at an asking price of $1 million.

But all of Suck.com's original content is still available online — including its Suckdot parody — at archive.org. Which, mercifully, is still here a full 28 years after launching in 1996...

The U.S. military has begun openly discussing offensive capabilities in space, reports ArsTechnica, a significant shift from previous policies that avoided mentioning space-based weapons to prevent an arms race. U.S. Space Command recently listed "integrated space fires" -- military terminology for offensive or defensive actions against adversaries -- among its priorities.

The move follows increasing concerns about China and Russia's space warfare capabilities, including satellite-disabling weapons and potential nuclear anti-satellite systems. "Space is a war-fighting domain," Space Force Chief Gen. Chance Saltzman said at a conference in Orlando. "Ten years ago, I couldn't say that." Gen. Stephen Whiting, head of U.S. Space Command, identified "integrated space fires" as his organization's most urgent requirement. The capabilities under consideration range from cyberattacks and directed energy weapons to satellite-capture systems, though specific details remain classified.

An anonymous reader shares a report: Copilot has gone native for Windows Insiders and commandeered a popular keyboard shortcut in the process. The move from a Progressive Web App (PWA) to a native binary -- although most of it appears to still be a website, just not running as a PWA -- will be welcomed. Microsoft noted that once the app update has been installed, Copilot will appear in the system tray.

However, the assistant's quick view feature has been given the Alt+Space keyboard shortcut. This is already used by many other applications, including Microsoft's own PowerToys. PowerToys Run, for example, uses Alt+Space to open a launcher into which users can type in the name of the service they are seeking. Alt+Space is also used to show the context menu of the active window. Therefore, Microsoft's decision to hand the shortcut over to Copilot is unlikely to please keyboard warriors who are used to their shortcuts working in a particular way.

The Windows vendor acknowledged that the shortcut was already in use by many apps, saying: "For any apps installed on your PC that might utilize this keyboard shortcut, Windows will register whichever app is launched first on your PC and running in the background as the app that is invoked when using Alt+Space."

An anonymous reader shares a report: Scientific advisers to the European Commission are calling for a moratorium across the EU on efforts to artificially cool Earth through solar geoengineering. That includes controversial technologies used to reflect sunlight back into space, primarily by sending reflective particles into the atmosphere or by brightening clouds.

Proponents argue that this can help in the fight against climate change, especially as planet-heating greenhouse gas emissions continue to climb. But small-scale experiments have triggered backlash over concerns that these technologies could do more harm than good. The European Commission asked its Group of Chief Scientific Advisors (GCSA) and European Group on Ethics in Science and New Technologies (EGE) to write up their opinions on solar geoengineering, which were published today alongside a report synthesizing what little we know about how these technologies might work.

There's "insufficient scientific evidence" to show that solar geoengineering can actually prevent climate change, says the opinion written by the GCSA. "Given the currently very high levels of scientific and technical uncertainty ... as well as the potential harmful uses, we advocate for a moratorium on all large-scale [solar geoengineering] experimentation and deployment," writes the EGE in the second highly anticipated opinion.

Microsoft AI CEO Mustafa Suleyman predicts conversational AI will become the primary way people interact with technology, replacing traditional web browsers and search engines within the next few years. In an interview with The Verge, Suleyman, who oversees Microsoft's consumer AI products including Bing and Copilot, called current search interfaces "completely broken" and "a total pain," arguing that voice-based AI interactions will prove "100 times easier" for users. He said: The UI that you experience is going to be automagically produced by an LLM in three or five years, and that is going to be the default. And they'll be representing the brands, businesses, influencers, celebrities, academics, activists, and organizations, just as each one of those stakeholders in society ended up getting a podcast, getting a website, writing a blog, maybe building an app, or using the telephone back in the day.

The technological revolution produces a new interface, which completely shuffles the way that things are distributed. And some organizations adapt really fast and they jump on board and it kind of transforms their businesses and their organizations, and some don't. There will be an adjustment. We'll look back by 2030 and be like, "Oh, that really was the kind of moment when there was this true inflection point because these conversational AIs really are the primary way that we have these interactions." And so, you're absolutely right. A brand and a business are going to use that AI to talk to your personal companion AI because I don't really like doing that kind of shopping. And some people do, and they'll do that kind of direct-to-consumer browsing experience. Many people don't like it, and it's actually super frustrating, hard, and slow.

And so, increasingly you'll come to work with your personal AI companion to go and be that interface, to go and negotiate, find great opportunities, and adapt them to your specific context. That'll just be a much more efficient protocol because AIs can talk to AIs in super real-time. And by the way, let's not fool ourselves. We already have this on the open web today. We have behind-the-scenes, real-time negotiation between buyers and sellers of ad space, or between search ranking algorithms. So, there's already that kind of marketplace of AIs. It's just not explicitly manifested in language. It's operating in vector space.

This week a Florida-based Bitcoin-tech company named MARA Holdings announced it had bought a 114-megawatt Texas wind farm, reports Chron.com, "and will subsequently take it off the power grid and use it to energize its mining operations."

MARA's CEO tells the site they're "leveraging renewable resources that would have otherwise been curtailed" while "reducing our bitcoin production costs through vertical integration, and demonstrating MARA's commitment to environmental stewardship." The wind farms were not a part of the Electric Reliability Council of Texas (ERCOT) grid, but instead they were located within the Southwest Power Pool, which manages the market for the central U.S., including but not limited to most or parts of Oklahoma, Kansas, Nebraska, South Dakota and North Dakota... A 114-MW facility could power somewhere between 20,000 and 100,000 homes, depending on who you ask...

Historically, the facilities use up a lot of power and have generated backlash from neighbors who have complained about the noise of the machines inside. Texas has been a haven for cryptocurrency tech companies, primarily because of the state's space, deregulated power market and friendly business climate. Two weeks ago, the Public Utilities Commission adopted a rule requiring crypto and other virtual currency miners within the ERCOT grid to register their locations, ownership information and electricity demands, to further ensure that they could be watchful of this emerging source of energy consumption.
"Crypto mining operations currently consume around 2.3 percent of US electricity, and it requires roughly 155,000kWh to mine one Bitcoin," notes the site Data Centre Dynamics. This is the second off-grid power deal MARA has signed over the last few months. In October, it launched a 25MW micro data center operation across oil wellheads in Texas and North Dakota. The data center will be powered exclusively by excess natural gas from oilfield production that would have otherwise been flared. The operation will be distributed across wellheads in Texas and North Dakota, with operational status expected by January 2025.
Some context from Bloomberg: A few years ago Bitcoin miners took part in a global scramble for electricity to power their specialized computers... But the rise of AI, with its insatiable demand for electricity, dwarfed the needs of crypto and upended energy markets worldwide. Miners must now compete with much-larger tech firms for connections to electrical grids and power contracts. "Bitcoin miners are being forced to go look at marginal generation," said [MARA CEO Fred] Thiel. "The AI guys can afford to pay a much higher amount for energy than a Bitcoin miner"... MARA's plan to mine only when the wind is blowing makes economic sense because its mine will house last-generation computers that would otherwise have been retired, Thiel said.
"Thiel said he'd be interested to potentially buy more wind farms over time."

Not every tech "advent calendar" involves programming puzzles. Instead the geek tradition of programming-language advent calendars "seems to have started way back in 2000," according to one history, "when London-based programmer Mark Fowler launched a calendar highlighting a different Perl module each day."

So the tradition continues...

• Nearly a quarter of a century later, there's still a Perl Advent Calendar, celebrating tips and tricks like "a few special packages waiting under the tree that can give your web applications a little extra pep in their step."

• And of course there's a separate advent calendar for Raku programmers.

• Since 2009 web performance consultant (and former Yahoo and Facebook engineer) Stoyan Stefanov has been pulling together an annual Web Performance calendar with helpful blog posts.

• There's also a JVM Advent calendar with daily helpful hints for Java programmers.

• Another advent calendar promises daily posts about C#.

• The HTMHell site — which bills itself as "a collection of bad practices in HTML, copied from real websites" — is celebrating the season with the "HTMHell Advent Calendar," promising daily articles on security, accessibility, UX, and performance.

• There's even an advent calendar with tips for the reverse-engineering framework Radar.

• There's still a lovely web-design themed calendar at Designcember.com.

And meanwhile developers at the Svelte frontend framework are actually promising to release something new each day, "whether it's a new feature in Svelte or SvelteKit or an improvement to the website!"

But not every tech advent calendar is about programming...

• Adafruit's managing director is publishing a Retrocomputing Advent Calendar — daily looks at the ghosts of computers past.

• The Atlantic continues its 17-year tradition of a Space Telescope advent calendar, featuring daily images from both NASA's Hubble telescope and James Webb Space Telescope

• The gaming blog Rock Paper Shotgun has been counting down their favorite games of 2024...

"In September 2024, U.S. scientists made key advances towards building a nuclear clock — a step beyond an atomic clock," according to ScienceAlert: In contrast to the atomic clock, the transition measured by this new device happens in the nucleus, or core, of the atom (hence the name), which gives it an even higher frequency. Thorium-229, the atom used for this study, offers a nuclear transition that can be excited by ultraviolet light. The team working on the nuclear clock overcame the technological challenge of building a frequency comb that works at the relatively high frequency range of ultraviolet light. This was a big step forward because nuclear transitions usually only become visible at much higher frequencies — like those of gamma radiation. But we are not able to accurately measure transitions in the gamma range yet.

The thorium atom transition has a frequency roughly one million times higher than the caesium atom's. This means that, although it has been measured with a lower accuracy than the current state-of-the-art strontium clock, it promises a new generation of clocks with much more precise definitions of the second. Measuring time to the nineteenth decimal place, as nuclear clocks could do, would allow scientists to study very fast processes... [G]eneral relativity is used to study high speed processes that could lead to overlaps with quantum mechanics. A nuclear clock will give us the technology necessary for proving these theories. [The clocks "will enable the study of the union of general relativity and quantum mechanics once they become sensitive to the finite wavefunction of quantum objects oscillating in curved space-time," according to the abstract of the researchers' paper.]

On a technological level, precise positioning systems such as GPS are based on complex calculations that require fine measurements of the time required by a signal to jump from one device to a satellite and onto another device. A better definition of the second will translate to much more accurate GPS. Time might be up for the caesium second, but a whole new world awaits beyond it.
As the researchers explain their paper's abstract,

Space.com calls it "the once-in-a-lifetime reignition of a long-dead star in an explosion powerful enough to briefly match the brilliance of Polaris, the North Star." In March CNN promised this once-every-79-years event would happen "anytime between now and September."

But it didn't...

Space.com has a spectacular animation showing what this "recurring nova" was supposed to look like (described by CNN as a "sudden, brief explosion" from a collapsed/"white dwarf" star). "The highly-anticipated 'guest star' of the night sky has yet to deliver its grand performance," adds Space.com, "but we have an update." For a quick recap... T Coronae Borealis — often called T Cor Bor or T CrB — is home to a white dwarf, a dense, burnt-out star siphoning material from its companion star, which is a massive red giant close to the end of its life. This material spirals into an accretion disk around the white dwarf, where it slowly coats the star's surface. Every 80 years or so, the white dwarf manages to accumulate enough mass to trigger a nuclear explosion, sparking an outburst that boosts its typically dim magnitude of 10 to a bright 2.0 — that should look like a "new star" in the night sky to us...

[T]he elusive system continues to show signs that an outburst is still imminent. So, what gives? "We know it has to happen," astrophysicist Elizabeth Hays, who is watching T CrB every day using NASA's Fermi gamma-ray space telescope, told Space.com in a recent interview. "We just can't pin it down to the month."

The unpredictability stems partly from limited historical records of T CrB's outbursts. Only two such eruptions have been definitively observed in recent history: on May 12, 1866, when a star's outburst briefly outshined all the stars in its constellation, reaching magnitude 2.0, and again on February 9, 1946, when it peaked at magnitude 3.0. These events appear to follow the star's roughly 80-year cycle, suggesting that the next outburst may not occur until 2026. However, in February 2015, the system brightened in a manner reminiscent of its behavior in 1938, eight years before its 1946 eruption. This rise in brightness suggested T CrB's outburst was accelerated to 2023. The system also endured a "unique and mysterious" dimming about a year before its 1946 outburst, and a similar dip started in March last year, prompting astronomers to adjust their predictions to 2024.

Yet, the cause of this pre-eruption dip in brightness remains unclear, making it only a coincidental predictor. "We got really excited when it looked like it was doing similar things," said Hays. "Now we're learning, 'Oh, there's another piece we can't see.'" Moreover, the rate at which the red giant's material is being drawn toward the white dwarf may fluctuate over the years, making it trickier to put a date on the calendar for the outburst, Edward Sion, a professor of astronomy and astrophysics at Villanova University in Pennsylvania, told Space.com... "There's a lot of uncertainty about the actual average accretion rate," said Sion.
The article points out that last time there was an eruption, "there were no X-ray or gamma-ray telescopes in space, so there is no data from wavelengths other than optical to shed light on what happened before the outburst." But this time astrophysicist Hays says "We're getting the best dataset we've ever had on what does nova look like before it goes off".

Space.com says "this wealth of data will allow them to better predict future outbursts, and will eventually benefit models of how stars work."

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

"SpaceX has launched 20 of its Starlink satellites up into Earth's orbit, enabling direct-to-cellphone connectivity for subscribers anywhere on the planet," reports the tech blog New Atlas. That completes the constellation's first orbital shell, following a launch of an initial batch of six satellites for testing back in January. The satellites were launched with a Falcon 9 rocket from California's Vandenberg Space Force Base on December 5 at 10 PM EST; they were then deployed in low Earth orbit. SpaceX founder Elon Musk noted on X that the effort will "enable unmodified cellphones to have internet connectivity in remote areas." He added a caveat for the first orbital shell — "Bandwidth per beam is only ~10 Mb, but future constellations will be much more capable...."

The big deal with this new venture is that unlike previous attempts at providing satellite-to-phone service, you don't need a special handset or even a specific app to get access anywhere in the world. Starlink uses standard LTE/4G protocols that most phones are compatible with, partners with mobile operators like T-Mobile in the U.S. and Rogers in Canada, and has devised a system to make its service work seamlessly with your phone when it's connecting to satellites 340 miles (540 km) above the Earth's surface. The SpaceX division noted it's also worked out latency constraints, ideal altitudes and elevation angles for its satellites, along with several other parameters, to achieve reliable connectivity. Each satellite has an LTE modem on board, and these satellites plug into the massive constellation of 6,799 existing Starlink spacecraft, according to Space.com.

Connecting to that larger constellation happens via laser backhaul, where laser-based optical communication systems transmit data between satellites. This method leverages the advantages of lasers over traditional radio frequency communications, enabling data rates up to 100 times faster, increased bandwidth, and improved security.
The direct-to-cell program was approved last month, the article points out — but it's ready to ramp up. "You'll currently get only text service through the end of 2024; voice and data will become available sometime next year, as will support for IoT devices (such as smart home gadgets). The company hasn't said how much its service will cost. " (They also note there's already competing services from Lynk, "which has satellites in orbit and launched in the island nation of Palau back in 2023, and AST SpaceMobile, which also has commercial satellites in orbit and contracts with the U.S. government, Europe, and Japan.")

Elon Musk's announcement on X.com prompted this interesting exchange:

X.com User: You've stated that purchasing Starlink goes toward funding the journey to Mars, yes?

Elon Musk: Yes.

Today a group of German scientists presented data suggesting Earth is absorbing more sunlight than in the past, reports Ars Technica, "largely due to reduced cloud cover." We can measure both the amount of energy the Earth receives from the Sun and how much energy it radiates back into space.... The new paper finds that the energy imbalance set a new high in 2023, with a record amount of energy being absorbed by the ocean/atmosphere system. This wasn't accompanied by a drop in infrared emissions from the Earth, suggesting it wasn't due to greenhouse gases, which trap heat by absorbing this radiation. Instead, it seems to be due to decreased reflection of incoming sunlight by the Earth....

Using two different data sets, the teams identify the areas most effected by this, and they're not at the poles, indicating loss of snow and ice are unlikely to be the cause. Instead, the key contributor appears to be the loss of low-level clouds [particularly over the Atlantic ocean]... The drop in low-level clouds had been averaging about 1.3 percent per decade. 2023 saw a slightly larger drop occur in just one year....

So, what could be causing the clouds to go away? The researchers list three potential factors. One is simply the variability of the climate system, meaning 2023 might have just been an extremely unusual year, and things will revert to trends in the ensuing years. The second is the impact of aerosols, which both we and natural processes emit in copious quantities. These can help seed clouds, so a reduction of aerosols (driven by things like pollution control measures) could potentially account for this effect. The most concerning potential explanation, however, is that there may be a feedback relationship between rising temperatures and low-level clouds. Meaning that, as the Earth warms, the clouds become sparse, enhancing the warming further. That would be bad news for our future climate, because it suggests that the lower range of warming estimates would have to be adjusted upward to account for it.
If the decline in reflectivity wasn't just caused by normal variability, the researchers warn, "the 2023 extra heat may be here to stay..."

"Are Primordial Black Holes real...?" asks Universe Today. "If they do exist, a "new paper suggests they may be hiding in places so unlikely that nobody ever thought to look there..." — in planets, in asteroids, and here on earth. Physicists hypothesize that Primordial Black Holes (PBHs) formed in the early Universe from extremely dense pockets of sub-atomic matter that collapsed directly into black holes. They could form part or all of what we call dark matter. However, they remain hypothetical because none have been observed... The authors claim that evidence for PBHs could be found in objects as large as hollowed out planetoids or asteroids and objects as small as rocks here on Earth. "Small primordial black holes could be captured by rocky planets or asteroids, consume their liquid cores from inside and leave hollow structures," the authors write. "Alternatively, a fast black hole can leave a narrow tunnel in a solid object while passing through it."

"We could look for such micro-tunnels here on Earth in very old rocks," the authors claim, explaining that the search wouldn't involve specialized, expensive equipment... "The chances of finding these signatures are small, but searching for them would not require much resources and the potential payoff, the first evidence of a primordial black hole, would be immense," said Dejan Stojkovic [the paper's co-author from the State University of New York]. "We have to think outside of the box because what has been done to find primordial black holes previously hasn't worked...." Cosmology is kind of at a standstill while we wrestle with the idea of dark matter. Could PBHs be dark matter? Could they behave like the authors suggest, and be detected in this manner?

"The smartest people on the planet have been working on these problems for 80 years and have not solved them yet," Stojkovic said. "We don't need a straightforward extension of the existing models. We probably need a completely new framework altogether."

America's next president "announced Wednesday he has selected Jared Isaacman, a billionaire businessman and space enthusiast who twice flew to orbit with SpaceX, to become the next NASA administrator," reports Ars Technica: In a post on X, Isaacman said he was "honored" to receive Trump's nomination. "Having been fortunate to see our amazing planet from space, I am passionate about America leading the most incredible adventure in human history," Isaacman wrote. "On my last mission to space, my crew and I traveled farther from Earth than anyone in over half a century. I can confidently say this second space age has only just begun...."

"Jared Isaacman will be an outstanding NASA Administrator and leader of the NASA family," said Jim Bridenstine, who led NASA as administrator during Trump's first term in the White House. "Jared's vision for pushing boundaries, paired with his proven track record of success in private industry, positions him as an ideal candidate to lead NASA into a bold new era of exploration and discovery. I urge the Senate to swiftly confirm him." Lori Garver, NASA's deputy administrator during the Obama administration, wrote on X that Isaacman's nomination was "terrific news," adding that "he has the opportunity to build on NASA's amazing accomplishments to pave our way to an even brighter future."

Isaacman, 41, is the founder and CEO of Shift4, a mobile payment processing platform, and co-founded Draken International, which owns a fleet of retired fighter jets to pose as adversaries for military air combat training... Isaacman, an evangelist for the commercial space industry, has criticized some of NASA's decisions on the Artemis program. In several posts on X, he questioned the agency's decision to fund two redundant lunar landers, while not planning for any backup to the Space Launch System (SLS) rocket, which costs $2.2 billion per copy, not including expenses for ground infrastructure or the Orion spacecraft itself. One of those casualties might be the SLS rocket. The program is managed by NASA, with suppliers spread across the United States and prime contractors working under cost-plus arrangements with the space agency, meaning the government is on the hook to pay for any delays or cost overruns.
If confirmed he'll be the 4th NASA administrator who's actually flown in space, according to the article.

And according to Wikipedia, Isaacman was the commander of Inspiration4, a private spaceflight using SpaceX's Crew Dragon Resilience that launched in 2021. The crew returned to Earth on September 18, 2021, after orbiting at 585 km (364 mi) in altitude. The mission was part of a fundraiser for St. Jude Children's Research Hospital, to which Isaacman pledged to donate $100 million.
Thanks to Slashdot reader FallOutBoyTonto for sharing the news.

Have you been to Enron.com lately?

"It's the comeback story no one asked for," reports CNN, "the resurrection of a brand so toxic it remains synonymous with corporate fraud more than two decades after it collapsed in bankruptcy.

"That's right, folks: Enron is back. But only kind of." TL;DR: A company that makes T-shirts bought the Enron trademark and appears to be trying to sell some merch on behalf of the guy behind the satirical conspiracy theory "Birds Aren't Real...."

On Monday, the 23rd anniversary of Enron's filing for bankruptcy, rumors began to spread that the former Texas energy giant had come back from the dead. A sleek new website, enron.com, appeared to show that the company had done some serious soul-searching and, inexplicably, reincorporated under its original brand. As a modern energy company, it would be dedicated to "solving the global energy crisis," its press statement reads. The site is packed with the kind of stock art and benign corporate platitudes that lend it credibility. There's a link to job openings, employee testimonials and even a minute-long video titled "I am Enron," a movie-trailer-style mashup of cityscape time lapses, rockets launching into space, a ballerina twirling on a beach — a mess of imagery and baritone voiceover so trite it's almost believable.

But the site and its associated social media accounts are, like Enron's balance sheets, mostly fiction. Unlike the Enron scandal, however, this one appears to be little more than performance art designed to sell branded hoodies. Publicly available documents show that an Akansas-based LLC called The College Company bought the Enron trademark for $275 in 2020... You can tab over to the site's "Company Store" page to browse a selection of Enron-branded hoodies ($118 before tax and shipping), puffer vests ($89), tees ($40) baseball hats ($40), beanies ($30) and water bottles emblazoned with the slogan "you've got great energy."
Somewhere on the site CNN spotted a list of "key pillars" which included a commitment to "permissionless innovation," which CNN took to be "a nod that prompted some speculation online that the new 'Enron' would launch some kind of digital token." That phrase has apparently been changed now to "continuous innovation." An Enron-branded X account posted and later deleted a message teasing at a crypto offering, saying "we do not have any token or coin (yet). Stay tuned, we are excited to show you more soon."
But sharp-eyed X.com users also found the key context to add: that the Terms of Use at Enron.com declare the site's information "is First Amendment-protected parody, represents performance art, and is for entertainment purposes only."

Still, the site includes this testimonial from someone it says is a current employee. "Like many of my peers in the Enron family, I was skeptical at first.

"Now, not only do I have complete confidence in the integrity of the company, I also genuinely believe that we are leading the way for a new chapter of American business."

"If NASA establishes a permanent presence on the moon, its astronauts' homes could be made of a new 3D-printable, waterless concrete," writes MIT Technology Review. "Someday, so might yours.

"By accelerating the curing process for more rapid construction, this sulfur-based compound could become just as applicable on our home terrain as it is on lunar soil..." Building a home base on the moon will demand a steep supply of moon-based infrastructure: launch pads, shelter, and radiation blockers. But shipping Earth-based concrete to the lunar surface bears a hefty price tag. Sending just 1 kilogram (2.2 pounds) of material to the moon costs roughly $1.2 million, says Ali Kazemian, a robotic construction researcher at Louisiana State University (LSU). Instead, NASA hopes to create new materials from lunar soil and eventually adapt the same techniques for building on Mars.

Traditional concrete requires large amounts of water, a commodity that will be in short supply on the moon and critically important for life support or scientific research, according to the American Society of Civil Engineers. While prior NASA projects have tested compounds that could be used to make "lunarcrete," they're still working to craft the right waterless material.

So LSU researchers are refining the formula, developing a new cement based on sulfur, which they heat until it's molten to bind material without the need for water. In recent work, the team mixed their waterless cement with simulated lunar and Martian soil to create a 3D-printable concrete, which they used to assemble walls and beams. "We need automated construction, and NASA thinks 3D printing is one of the few viable technologies for building lunar infrastructure," says Kazemian.

Beyond circumventing the need for water, the cement can handle wider temperature extremes and cures faster than traditional methods. The group used a pre-made powder for their experiments, but on the moon and Mars, astronauts might extract sulfur from surface soil.
Kazemian and his colleagues recently transferred the technology to NASA's Marshall Space Flight Center for further testing...