The Vera C. Rubin Observatory in Chile will begin full operations in the coming months with the world's largest digital camera, capturing 3,200-megapixel images that would require several hundred HD television screens to display at full resolution. The $810 million facility will map the entire southern sky every three to four nights, observing each location approximately 800 times over its planned decade of operations.

The telescope's unusual design allows it to photograph an area equivalent to 45 full moons in each shot and swing between different sky locations every 40 seconds. Its digital camera, roughly the size of a small car, will generate eight million alerts per night when it detects astronomical objects that move or change brightness, according to Tony Tyson, the University of California, Davis astronomer who conceived the project in the 1990s. Astrophysicist Federica Bianco, who received a preview of the telescope's first full-color image, described her reaction simply: "There are so many stars!" The team plans to unveil that inaugural image on June 23.

An anonymous reader quotes a report from Axios: President Trump quietly took a red pen to much of the Biden administration's cyber legacy in a little-noticed move late Friday. Under an executive order signed just before the weekend, Trump is tossing out some of the major touchstones of Biden's cyber policy legacy -- while keeping a few others. The order preserves efforts around post-quantum cryptography, advanced encryption standards, and border gateway protocol security, along with the Cyber Trust Mark program -- an Energy Star-type labeling initiative for consumer smart devices. But hallmark programs tied to software bills of materials, zero-trust implementation, and space contractor cybersecurity requirements have been either rescinded or left in limbo. The new executive order amends both the Biden cyber executive order signed in January and an Obama administration order.

Each of the following Biden-era programs is now out the door or significantly rolled back:
- A broad requirement for federal software vendors to provide a software bill of materials - essentially an ingredient list of code components - is gone.
- Biden-era efforts to encourage federal agencies to accept digital identity documents and help states develop mobile driver's licenses were revoked.
- Several AI cybersecurity research mandates, including those focused on AI-generated code security and AI-driven patch management pilots, have been scrapped or deprioritized.
- The requirement that software contractors formally attest they followed secure development practices - and submit those attestations to a federal repository - has been cut. Instead, the National Institute of Standards and Technology will now coordinate a new industry consortium to review software security guidelines.

A NASA-backed project using observations from the James Webb Space Telescope (JWST) has released more than 1.5 TB of data for open science, offering the largest view deep into the universe available to date. From a report: The Cosmic Evolution Survey (COSMOS), a joint project from the University of California, Santa Barbara and Rochester Institute of Technology, has launched a searchable dataset for budding astrophysics enthusiasts worldwide.

As well as a catalog of galaxies, the dataset includes an interactive viewer that users can search for images of specific objects or click them to view their properties, covering approximately 0.54 square degrees of sky with the Near Infrared Camera (NIRCam) and a 0.2 square degree area with the Mid Infrared Instrument (MIRI). Although the raw data was already publicly available to the science community, the aim of the COSMOS-Web project was to make it more usable for other scientists.

Blue Origin is falling far short of its goal to launch the New Glenn rocket eight times in 2025, with its second flight now delayed until at least mid-August. Key leadership changes were also announced, including the departure of the New Glenn program head, as the company faces pressure to increase launch cadence and compete with SpaceX for federal contracts and Amazon's Project Kuiper deployments. Ars Technica reports: The mission, with an undesignated payload, will be named "Never Tell Me the Odds," due to the attempt to land the booster. "One of our key mission objectives will be to land and recover the booster," [chief executive of Blue Origin, Dave Limp] wrote. "This will take a little bit of luck and a lot of excellent execution. We're on track to produce eight GS2s this year, and the one we'll fly on this second mission was hot-fired in April."

In this comment, GS2 stands for "Glenn stage 2," or the second stage of the large rocket. It is telling that Limp commented on the company tracking toward producing eight second stages, which would match the original launch cadence planned for this year. This likely is a fig leaf offered to Bezos, who, two sources said, was rather upset that Blue Origin would not meet (or even approach) its original target of eight launches this year. One person familiar with the progress on the vehicle told Ars that even a launch date in August is unrealistic -- this too may have been set aggressively to appease Bezos -- and that September is probably the earliest the rocket is likely to be ready for launch. Blue Origin has not publicly stated what the payload will be, but this second flight is expected to carry the ESCAPADE mission for NASA.

On May 28, a couple of days after Limp's all-hands meeting, the chief executive emailed his entire team to announce an "organizational update." As part of this, the company's senior vice president of engines, Linda Cova, was retiring. Multiple sources confirmed this retiring was expected and that the company's program to produce BE-4 rocket engines is going well. However, the other name in the email raised some eyebrows, coming so soon after the announcement that New Glenn's cadence would be significantly slower than expected. Jarrett Jones, the senior vice president running the New Glenn program, was said to be "stepping away from his role and taking a well deserved year off" starting on August 15. It is unclear whether this departure was linked to Bezos' displeasure with the rocket program. One company official said Jones' sabbatical had been planned, but the timing is curious. A search for internal and external candidates to fill his role is ongoing.

South Asia has warmed far more slowly than the rest of the world over the past four decades with temperatures rising just 0.09C per decade compared to 0.30C elsewhere on land, according to new climate research. Scientists believe this "warming hole" results from two factors that have masked the true impact of global warming: heavy aerosol pollution that reflects sunlight back to space and expanded irrigation that cools air through evaporation.

The protective effect is temporary and comes at a deadly cost. Air pollution currently kills between 2 million and 3 million people annually in South Asia, while extreme heat causes 100,000 to 600,000 deaths. As governments reduce pollution and groundwater depletion limits irrigation expansion, atmospheric scientists predict India will warm at twice the rate of the past 20 years. By 2047, the average Indian could experience a four-fold increase in dangerous heat stress days, threatening a region where only 10% of households have air conditioning.

Nintendo's new Switch 2 console sold a record 3 million units after its launch Thursday. But then today Microsoft announced their own upcoming handheld gaming device that's Xbox-branded (and Windows-powered).

Working with ASUS' ROG division, they build a device that weighs more than the Nintendo Switch 2, and "is marginally heavier than the Steam Deck," reports Engadget. But "at least those grips look more ergonomic than those on the Nintendo Switch 2 (which is already cramping my hands) or even the Steam Deck." There are two variants of the handheld: the ROG Xbox Ally and ROG Xbox Ally X. Microsoft didn't reveal pricing, but the handhelds are coming this holiday... Critically, Microsoft and ROG aren't locking the devices to only playing Xbox games (though you can do that natively, via the cloud or by accessing an Xbox console remotely). You'll be able to play games from Battle.net and "other leading PC storefronts" too. Obviously, there's Game Pass integration here, as well as support for the Xbox Play Anywhere initiative, which enables you to play games with synced progress across a swathe of devices after buying them once...

There's a dedicated physical Xbox button that can bring up a Game Bar overlay, which seemingly makes it easy to switch between apps and games, tweak settings, start chatting with friends and more... You'll be able to mod games on either system as well.

The Xbox Ally is powered by the AMD Ryzen Z2 A Processor, and has 16GB of RAM and 512GB of SSD storage. The Xbox Ally X is the more powerful model. It has a AMD Ryzen AI Z2 Extreme processor, 24GB of RAM and 1TB of storage. They each have a microSD card reader, so you won't need to worry about shelling out for proprietary storage options to have extra space for your games... Both systems boast "HD haptics..." Both systems should be capable of outputting video to a TV or monitor, as they have two USB-C ports with support for DisplayPort 2.1 and Power Delivery 3.0.
"Microsoft has needed to respond to SteamOS ever since the Steam Deck launched three years ago," argues The Verge, "and it has steadily been tweaking its Xbox app and the Xbox Game Bar on Windows to make both more handheld-friendly..." But there was always a bigger overhaul of Windows required, and we're starting to see parts of that today. "The reality is that we've made tremendous progress on this over the last couple of years, and this is really the device that galvanized those teams and got everybody marching and working towards a moment that we're just really excited to put into the hands of players," says Roanne Sones, corporate vice president of gaming Devices and ecosystem at Xbox, in a briefing with The Verge...

I'll need to try this new interface fully to really get a feel for the Windows changes here, but Microsoft is promising that this isn't just lipstick on top of Windows. "This isn't surface-level changes, we've made significant improvements," says Potvin. "Some of our early testing with the components we've turned off in Windows, we get about 2GB of memory going back to the games while running in the full-screen experience."

Mike Judge always seemed to have secret geek sympathies. He co-created the HBO series Silicon Valley, as well as the movie Office Space (reviewed in 1999 by Slashdot contributor Jon Katz).

Now comes the word that besides rebooting Buffy the Vampire Slayer — and an animated scifi/action/horror film called Predator: Killer of Killers — Hulu is also relaunching Judge's animated series King of the Hill on August 4th. And Cinemablend notes they took great pains to ensure the inclusion of internet-loving neighbor Dale Gribble despite the death of voice actor Johnny Hardwick: Co-creators Mike Judge and Greg Daniels joined the cast of returning voice actors for a revealing Q&A at ATX Fest while also revealing longtime cast member Toby Huss took over the role of Dale Gribble... Hardwick passed away in August 2023 at 64, with fans and co-stars paying tribute soon after. It was revealed at the time that he'd recorded some audio for the new season, but it was clear that another actor would be needed to fill those intimidating and conspiracy-obsessed shoes. Among other characters, Huss provided the voice of Cotton Hill and Kahn Sr. in the O.G. run, and feels to me like a natural fit to take over as Dale. And he sounds humbled to have been given the task, telling the ATX Fest crowd:

"Johnny was one-of-a-kind and a wonderful fellow. I'm not trying to copy Johnny...I guess I'm trying to be Johnny. He laid down a really wonderful goofball character...he had a lot of weird heart to him and that's a credit to Johnny. So all I'm trying to do is hold on to his Dale-ness. We love our guy Johnny and it's so sad that he's not here...."

I can already hear Dale himself questioning why he sounds different, and whether or not the government has replaced him with a lizard creature or some other sentient organism... In the immediate aftermath of Johnny Hardwick's death, the word was that the actor had filmed a couple of episodes' worth of material for the Hulu revival, but Mike Judge went on the record at ATX Fest to reveal that initial assessment undershot things entirely. From the voice of Hank Hill himself: "Johnny Hardwick is in six episodes. He's still going to be in the show."
Hulu uploaded the new opening credits to YouTube eight days ago — and it's already been viewed 2.1 million times, attracting 55,000 upvotes and 7,952 comments...

Long-time Slashdot reader theodp shared the official blurb describing the new show: After years working a propane job in Saudi Arabia to earn their retirement nest egg, Hank and Peggy Hill return to a changed Arlen, Texas to reconnect with old friends Dale, Boomhauer and Bill. Meanwhile, Bobby is living his dream as a chef in Dallas and enjoying his 20s with his former classmates Connie, Joseph and Chane.

MIT comp-sci professor Ryan Williams suspected that a small amount of memory "would be as helpful as a lot of time in all conceivable computations..." writes Quanta magazine.

"In February, he finally posted his proof online, to widespread acclaim..." Every algorithm takes some time to run, and requires some space to store data while it's running. Until now, the only known algorithms for accomplishing certain tasks required an amount of space roughly proportional to their runtime, and researchers had long assumed there's no way to do better. Williams' proof established a mathematical procedure for transforming any algorithm — no matter what it does — into a form that uses much less space.

What's more, this result — a statement about what you can compute given a certain amount of space — also implies a second result, about what you cannot compute in a certain amount of time. This second result isn't surprising in itself: Researchers expected it to be true, but they had no idea how to prove it. Williams' solution, based on his sweeping first result, feels almost cartoonishly excessive, akin to proving a suspected murderer guilty by establishing an ironclad alibi for everyone else on the planet. It could also offer a new way to attack one of the oldest open problems in computer science.

"It's a pretty stunning result, and a massive advance," said Paul Beame, a computer scientist at the University of Washington.
Thanks to long-time Slashdot reader mspohr for sharing the article.

Startup Nord Quantique has demonstrated that a single piece of hardware can host an error-detecting logical qubit by using two quantum frequencies within one resonator. The breakthrough has the potential to slash the hardware demands for quantum error correction and deliver more compact and efficient quantum computing architectures. Ars Technica reports: The company did two experiments with this new hardware. First, it ran multiple rounds of error detection on data stored in the logical qubit, essentially testing its ability to act like a quantum memory and retain the information stored there. Without correcting errors, the system rapidly decayed, with an error probability in each round of measurement of about 12 percent. By the time the system reached the 25th measurement, almost every instance had already encountered an error. The second time through, the company repeated the process, discarding any instances in which an error occurred. In almost every instance, that meant the results were discarded long before they got through two dozen rounds of measurement. But at these later stages, none of the remaining instances were in an erroneous state. That indicates that a successful correction of the errors -- something the team didn't try -- would be able to fix all the detected problems.

Several other companies have already performed experiments in which errors were detected -- and corrected. In a few instances, companies have even performed operations with logical qubits, although these were not sophisticated calculations. Nord Quantique, in contrast, is only showing the operation of a single logical qubit, so it's not even possible to test a two-qubit gate operation using the hardware it has described so far. So simply being able to identify the occurrence of errors is not on the cutting edge. Why is this notable?

All the other companies require multiple hardware qubits to host a single logical qubit. Since building many hardware qubits has been an ongoing challenge, most researchers have plans to minimize the number of hardware qubits needed to support a logical qubit -- some combination of high-quality hardware, a clever error correction scheme, and/or a hardware-specific feature that catches the most common errors. You can view Nord Quantique's approach as being at the extreme end of the spectrum of solutions, where the number of hardware qubits required is simply one. From Nord Quantique's perspective, that's significant because it means that its hardware will ultimately occupy less space and have lower power and cooling requirements than some of its competitors. (Other hardware, like neutral atoms, requires lots of lasers and a high vacuum, so the needs are difficult to compare.) But it also means that, should it become technically difficult to get large numbers of qubits to operate as a coherent whole, Nord Quantique's approach may ultimately help us overcome some of these limits.

An anonymous reader quotes a report from KrebsOnSecurity: Ukraine has seen nearly one-fifth of its Internet space come under Russian control or sold to Internet address brokers since February 2022, a new study finds. The analysis indicates large chunks of Ukrainian Internet address space are now in the hands of shadowy proxy and anonymity services that are nested at some of America's largest Internet service providers (ISPs). The findings come in a report that examines how the Russian invasion has affected Ukraine's domestic supply of Internet Protocol Version 4 (IPv4) addresses. Researchers at Kentik, a company that measures the performance of Internet networks, found that while a majority of ISPs in Ukraine haven't changed their infrastructure much since the war began in 2022, others have resorted to selling swathes of their valuable IPv4 address space just to keep the lights on.

For example, Ukraine's incumbent ISP Ukrtelecom is now routing just 29 percent of the IPv4 address ranges that the company controlled at the start of the war, Kentik found. Although much of that former IP space remains dormant, Ukrtelecom told Kentik's Doug Madory they were forced to sell many of their address blocks "to secure financial stability and continue delivering essential services." "Leasing out a portion of our IPv4 resources allowed us to mitigate some of the extraordinary challenges we have been facing since the full-scale invasion began," Ukrtelecom told Madory.

Madory found much of the IPv4 space previously allocated to Ukrtelecom is now scattered to more than 100 providers globally, particularly at three large American ISPs -- Amazon (AS16509), AT&T (AS7018), and Cogent (AS174). Another Ukrainian Internet provider -- LVS (AS43310) -- in 2022 was routing approximately 6,000 IPv4 addresses across the nation. Kentik learned that by November 2022, much of that address space had been parceled out to over a dozen different locations, with the bulk of it being announced at AT&T. Ditto for the Ukrainian ISP TVCOM, which currently routes nearly 15,000 fewer IPv4 addresses than it did at the start of the war. Madory said most of those addresses have been scattered to 37 other networks outside of Eastern Europe, including Amazon, AT&T, and Microsoft.

alternative_right shares a report from Phys.Org: Using conventional propulsion and low-energy trajectories, it takes six to nine months for crewed spacecraft to reach Mars. These durations complicate mission design and technology requirements and raise health and safety concerns since crews will be exposed to extended periods in microgravity and heightened exposure to cosmic radiation. Traditionally, mission designers have recommended nuclear-electric or nuclear-thermal propulsion (NEP/NTP), which could shorten trips to just 3 months. In a recent study, a UCSB physics researcher identified two trajectories that could reduce transits to Mars using the Starship to between 90 and 104 days.

The study was authored by Jack Kingdon, a graduate student researcher in the Physics Department at the University of California, Santa Barbara (UCSB). He is also a member of the UCSB Weld Lab, an experimental ultracold atomic physics group that uses quantum degenerate gases to explore quantum mechanical phenomena. [...] As outlined on its website, conference presentations, and user manual, the SpaceX mission architecture consists of six Starships traveling to Mars. Four of these spacecraft will haul 400 metric tons (440 U.S. tons) of cargo while two will transport 200 passengers. Based on the Block 2 design, which has a 1,500 metric ton (1,650 U.S. ton) propellant capacity, the crewed Starships will require 15 tankers to fully refuel in low Earth orbit (LEO). The cargo ships would require only four, since they would be sent on longer low-energy trajectories. Once the flotilla arrives at Mars, the Starships will refuel using propellant created in situ using local carbon dioxide and water ice. When the return window approaches, one of the crew ships and 3-4 cargo ships will refuel and then launch into a low Mars orbit (LMO). The cargo ships will then transfer the majority of their propellant to the crew ship and return to the surface of Mars. The crew ship would then depart for Earth, and the process could be repeated for the other crew ship.

Kingdon calculated multiple trajectories using a Lambert Solver, which produces the shortest elliptical arc in two-body problem equations (aka Lambert's problem). The first would depart Earth on April 30th, 2033, taking advantage of the 26-month periodic alignment between Earth and Mars. The transit would last 90 days, with the crew returning to Earth after another 90-day transit by July 2nd, 2035. The second would depart Earth on July 15th, 2035, and return to Earth after a 104-day transit on December 5th, 2037. As Kingdon explained, the former trajectory is the most likely to succeed: "The optimal trajectory is the 2033 trajectory -- it has the lowest fuel requirements for the fastest transit time. A note that may not be obvious to the layreader is that Starship can very easily reach Mars in ~3 months -- in fact, it can in any launch window, over a fairly wide range of trajectories. However, Starship may impact the Martian atmosphere too fast (although we do not know, and likely SpaceX don't either actually how fast Starship can hit the Martian atmosphere and survive). The trajectories discussed are ones that I am confident Starship will survive." The paper describing the work has been published in the journal Scientific Reports.

The James Webb Space Telescope has discovered the most distant galaxy ever observed, named MoM z14. NASA estimates it existed just 280 million years after the Big Bang. Space.com reports: Prior to the discovery of MoM z14, the galaxy holding the title of earliest and distant was JADES-GS-z14-0, which existed just 300 million years after the Big Bang, or around 13.5 billion years ago. This previous record galaxy has a redshift of z =14.32, while MoM z14 has a redshift of z = 14.44. There is a wider context to the observation of MoM z14 than the fact that it has broken the record for earliest known galaxy by 20 million years, though, as [explained team member and Yale University professor of Astronomy and Physics Pieter van Dokkum].

The researchers were able to determine that MoM z14 is around 50 times smaller than the Milky Way. The team also measured emission lines from the galaxy, indicating the presence of elements like nitrogen and carbon. "The emission lines are unusual; it indicates that the galaxy is very young, with a rapidly increasing rate of forming new stars," van Dokkum said. "There are also indications that there is not much neutral hydrogen gas surrounding the galaxy, which would be surprising: the very early universe is expected to be filled with neutral hydrogen. "That needs even better spectra and more galaxies, to investigate more fully."

The presence of carbon and nitrogen in MoM z14 indicates that there are earlier galaxies to be discovered than this 13.52 billion-year-old example. That is because the very earliest galaxies in the universe and their stars were filled with the simplest elements in the cosmos, hydrogen and helium. Later galaxies would be populated by these heavier elements, which astronomers somewhat confusingly call "metal," as their stars forged them and then dispersed them in supernova explosions. The research has been published on arXiv.

More office space in the U.S. is being removed than added for the first time in at least 25 years. New data from CBRE Group shows that across the 58 largest US markets, 23.3 million square feet of office space is slated for demolition or conversion by year-end, while developers will complete just 12.7 million square feet of new construction.

New simulations suggest that the long-assumed collision between the Milky Way and Andromeda galaxies is not guaranteed, with the odds now estimated at just over 50% within the next 10 billion years. Factoring in other massive galaxies like M33 and the Large Magellanic Cloud revealed that their gravitational influence significantly alters the likelihood of a merger. ScienceAlert reports: The Milky Way and Andromeda are not, however, alone in this little corner of the cosmos. They belong to a small group of galaxies within a radius of about 5 million light-years from the Milky Way known as the Local Group. The Milky Way and Andromeda are the largest members, but there are quite a few other objects hanging out that need to be taken into consideration when modeling the future. [Astrophysicist Till Sawala of the University of Helsinki] and his colleagues took the latest data from the Hubble and Gaia space telescopes, and the most recent mass estimates for the four most massive objects in the Local Group -- the Milky Way, Andromeda, the Triangulum galaxy (M33), and the Large Magellanic Cloud (LMC). Then, they set about running simulations of the next 10 billion years, adding and removing galaxies to see how that changed the results.

Their results showed that the presence of M33 and LMC dramatically altered the probability of a collision between the Milky Way and Andromeda. When it is just the two large spiral galaxies, the merger occurred in slightly less than half the simulation runs. The addition of M33 increased the merger probability to two in three. Taking M33 back out and adding LMC had the opposite effect, decreasing the probability to one in three. When all four galaxies were present, the probability of a merger between the Milky Way and Andromeda within 10 billion years is slightly more than 50 percent. "We find that there are basically two types of outcomes," Sawala said. "The Milky Way and Andromeda will either come close enough on their first encounter (first 'pericenter') that dynamical friction between the two dark matter haloes will drag the orbit to an eventual merger, which very likely happens before 10 billion years, or they do not come close enough, in which case dynamical friction is not effective, and they can still orbit for a very long time thereafter."

"The main result of our work is that there is still significant uncertainty about the future evolution -- and eventual fate -- of our galaxy," Sawala added. "Of course, as a working astrophysicist, the best results are those that motivate future studies, and I think our paper provides motivation both for more comprehensive models and for more precise observations."

The research has been published in Nature Astronomy.

A new analysis argues that Stack Overflow's decline began years before AI tools delivered the "final blow" to the once-dominant programming forum. The site's monthly questions dropped from a peak of 200,000 to a steep collapse that began in earnest after ChatGPT's 2023 launch, but usage had been declining since 2014, according to data cited in the InfoWorld analysis.

The platform's remarkable reputation system initially elevated it above competitors by allowing users to earn points and badges for helpful contributions, but that same system eventually became its downfall, the piece argues. As Stack Overflow evolved into a self-governing platform where high-reputation users gained moderation powers, the community transformed from a welcoming space for developer interaction into what the author compares to a "Stanford Prison Experiment" where moderators systematically culled interactions they deemed irrelevant.

A new business model has emerged across China's major cities, El Pais reports, where companies charge unemployed individuals to rent desk space and pretend to work, responding to social pressure around joblessness amid rising youth unemployment rates. These services charge between 30 and 50 yuan ($4-7) daily for desks, Wi-Fi, coffee, and lunch in spaces designed to mimic traditional work environments.

Some operations assign fictitious tasks and organize supervisory rounds to enhance the illusion, while premium services allow clients to roleplay as managers or stage workplace conflicts for additional fees. The trend has gained significant traction on Xiaohongshu, China's equivalent to Instagram, where advertisements for "pretend-to-work companies" accumulate millions of views. Youth unemployment reached 16.5% among 16-to-24-year-olds in March 2025, according to National Bureau of Statistics data, while overall urban unemployment stood at 5.3% in the first quarter.

Adam Riess won a Nobel Prize in Physics for helping discover that the universe's acceleration is expanding, remembers The Atlantic. But then theorists "proposed the existence of dark energy: a faint, repulsive force that pervades all of empty space... the final piece to what has since come to be called the 'standard model of cosmology.'"

Riess thinks instead we should just replace the standard model: When I visited Riess, back in January, he mentioned he was looking forward to a data release from the Dark Energy Spectroscopic Instrument, a new observatory on Kitt Peak, in Arizona's portion of the Sonoran Desert. DESI has 5,000 robotically controlled optic fibers. Every 20 minutes, each of them locks onto a different galaxy in the deep sky. This process is scheduled to continue for a total of five years, until millions of galaxies have been observed, enough to map cosmic expansion across time... DESI's first release, last year, gave some preliminary hints that dark energy was stronger in the early universe, and that its power then began to fade ever so slightly. On March 19, the team followed up with the larger set of data that Riess was awaiting. It was based on three years of observations, and the signal that it gave was stronger: Dark energy appeared to lose its kick several billion years ago.

This finding is not settled science, not even close. But if it holds up, a "wholesale revision" of the standard model would be required [says Colin Hill, a cosmologist at Columbia University. "The textbooks that I use in my class would need to be rewritten." And not only the textbooks — the idea that our universe will end in heat death has escaped the dull, technical world of academic textbooks. It has become one of our dominant secular eschatologies, and perhaps the best-known end-times story for the cosmos. And yet it could be badly wrong. If dark energy weakens all the way to zero, the universe may, at some point, stop expanding. It could come to rest in some static configuration of galaxies. Life, especially intelligent life, could go on for a much longer time than previously expected.

If dark energy continues to fade, as the DESI results suggest is happening, it may indeed go all the way to zero, and then turn negative. Instead of repelling galaxies, a negative dark energy would bring them together into a hot, dense singularity, much like the one that existed during the Big Bang. This could perhaps be part of some larger eternal cycle of creation and re-creation. Or maybe not. The point is that the deep future of the universe is wide open...
"Many new observations will come, not just from DESI, but also from the new Vera Rubin Observatory in the Atacama Desert, and other new telescopes in space. On data-release days for years to come, the standard model's champions and detractors will be feverishly refreshing their inboxes..." And Riess tells The Atlantic he's disappointed when complacent theorists just tell him "Yeah, that's a really hard problem."

He adds, "Sometimes, I feel like I am providing clues and killing time while we wait for the next Einstein to come along."

"The Doctor is dead. Long live the Doctor!" writes Space.com. (Spoilers ahead...) "The era of Ncuti Gatwa's Fifteenth Doctor came to a surprise end on Saturday night, as the Time Lord regenerated at the end of "Doctor Who" season 2 finale... [T]he Doctor gradually realises that not everything is back to normal. Poppy, his daughter with Belinda Chandra in the "Wish World" fantasy, has been erased from history, so the Time Lord decides to sacrifice himself by firing a ton of regeneration energy into the time Vortex to "jolt it one degree" — and hopefully bring her back. It goes without saying that his madcap scheme saves Poppy, as we learn that, in this rewritten timeline, the little girl was always the reason Belinda had been desperate to get back home. But arguably the biggest talking point of the episode — and, indeed, the season — is saved until last, as the Doctor regenerates into a very familiar face...
Hint: They played the Doctor's companion, Rose Tyler, "alongside Christopher Eccleston's Ninth Doctor and David Tennant's Tenth Doctor during the phenomenally successful first two seasons of the show's 2005 reboot."

Showrunner Russell T Davies called it "an honour and a hoot" to welcome back Billie Piper to the TARDIS, "but quite how and why and who is a story yet to be told. After 62 years, the Doctor's adventures are only just beginning!" Although the show's post-regeneration credits have traditionally featured the line "And introducing [insert name] as the Doctor", here it simply says "And introducing Billie Piper". The omission of "as the Doctor" is unlikely to be accidental, suggesting that Davies is playing a very elaborate game with "Who" fandom...

Another mystery! The BBC and Disney+ are yet to confirm if and when "Doctor Who" will return for a third season of its current iteration.
"There's no decision until after season two..." Davies told Radio Times in April (as spotted by the Independent). "That's when the decision is — and the decision won't even be made by the people we work with at Disney Plus, it'll be made by someone in a big office somewhere. So literally nothing happening, no decision."

"For a new series to be ready for 2026, production would need to get under way relatively soon," writes the BBC. "So at the moment a new series or a special starring Billie Piper before 2027 looks unlikely." The Guardian adds: Concerns have been raised about falling viewing figures, which have struggled to rally since Russell T Davies' return in 2023. Two episodes during this series, which aired in May, got less than 3 million viewers — the lowest since the modern era began airing in 2005.
The Independent has this statement from Piper: "It's no secret how much I love this show, and I have always said I would love to return to the Whoniverse as I have some of my best memories there, so to be given the opportunity to step back on that Tardis one more time was just something I couldn't refuse, but who, how, why and when, you'll just have to wait and see."

An anonymous reader shared this report from Space.com: Three world travelers, two Space Camp alums and an aerospace executive whose last name aptly matched their shared adventure traveled into space and back Saturday, becoming the latest six people to fly with Blue Origin, the spaceflight company founded by billionaire Jeff Bezos.

Mark Rocket joined Jaime Alemán, Jesse Williams, Paul Jeris, Gretchen Green and Amy Medina Jorge on board the RSS First Step — Blue Origin's first of two human-rated New Shepard capsules — for a trip above the Kármán Line, the 62-mile-high (100-kilometer) internationally recognized boundary between Earth and space...

Mark Rocket became the first New Zealander to reach space on the mission. His connection to aerospace goes beyond his apt name and today's flight; he's currently the CEO of Kea Aerospace and previously helped lead Rocket Lab, a competing space launch company to Blue Origin that sends most of its rockets up from New Zealand. Alemán, Williams and Jeris each traveled the world extensively before briefly leaving the planet today. An attorney from Panama, Alemán is now the first person to have visited all 193 countries recognized by the United Nations, traveled to the North and South Poles, and now, have been into space. For Williams, an entrepreneur from Canada, Saturday's flight continued his record of achieving high altitudes; he has summitted Mt. Everest and five of the other six other highest mountains across the globe.
"For about three minutes, the six NS-32 crewmates experienced weightlessness," the article points out, "and had an astronaut's-eye view of the planet..."

On social media Blue Origin notes it's their 12th human spaceflight, "and the 32nd flight of the New Shepard program."

AI company Anthropic (founded in 2021 by a team that left OpenAI) is now making about $3 billion a year in revenue, reports Reuters (citing "two sources familiar with the matter.") The sources said December's projections had been for just $1 billion a year, but it climbed to $2 billion by the end of March (and now to $3 billion) — a spectacular growth rate that one VC says "has never happened." A key driver is code generation. The San Francisco-based startup, backed by Google parent Alphabet and Amazon, is famous for AI that excels at computer programming. Products in the so-called codegen space have experienced major growth and adoption in recent months, often drawing on Anthropic's models.
Anthropic sells AI models as a service to other companies, according to the article, and Reuters calls Anthropic's success "an early validation of generative AI use in the business world" — and a long-awaited indicator that it's growing. (Their rival OpenAI earns more than half its revenue from ChatGPT subscriptions and "is shaping up to be a consumer-oriented company," according to their article, with "a number of enterprises" limiting their rollout of ChatGPT to "experimentation.")

Then again, in February OpenAI's chief operating officer said they had 2 million paying enterprise users, roughly doubling from September, according to CNBC. The latest figures from Reuters...

• Anthropic's valuation: $61.4 billion.
• OpenAI's valuation: $300 billion.