computers

19 Apr 2026

Slashdot

Voyager 1 is Running Out of Power. NASA Just Switched Part of It Off

After 49 years of space travel, Voyager 1 "is running out of power," reports NPR: The spacecraft runs on a radioisotope thermoelectric generator - a device that converts heat from decaying plutonium into electricity. It carries no solar panels, no rechargeable batteries. Just the slow, steady release of nuclear warmth, which diminishes by about 4 watts each year. After nearly five decades, that decline has become critical. During a routine maneuver in late February, Voyager 1's power levels fell unexpectedly, bringing the probe dangerously close to triggering an automatic fault-protection shutdown - a self-preservation response that would have forced engineers into a lengthy and risky recovery process. The team needed to act first. On April 17, mission engineers sent a sequence of commands to deactivate the Low-energy Charged Particles experiment, known as the LECP, which is one of Voyager 1's remaining science instruments. The LECP has measured ions, electrons, and cosmic rays originating from both our solar system and the galaxy beyond it, helping scientists map the structure of interstellar space in a way no other instrument could... Voyager 1 now carries two operational science instruments: one that listens for plasma waves, and one that measures magnetic fields. Engineers believe the latest shutdown could buy the mission roughly another year of breathing room. The team is also developing a more sweeping power conservation plan they informally call "the Big Bang" - a coordinated swap of several powered components all at once, trading older systems for lower-power alternatives. If testing on Voyager 2, planned for May and June 2026, goes well, the same procedure will be attempted on Voyager 1 no sooner than July. If it works, there is even a slim chance the LECP could once more continue to work. The engineers say they hope to keep at least one instrument operating on each spacecraft into the 2030s. It would leave both still reporting from places no machine has ever gone before.111 Voyager 1 is now 15 billion miles from Earth, the article points out. (Radio signals take 23 hours to arrive...) Thanks to long-time Slashdot reader fahrbot-bot for sharing the article.

Nobel Prize-Winning Physicist Predicts Humankind Won't Survive Another 50 Years

Live Science spoke with physicist David Gross, who today received the $3 million "Special Breakthrough Prize in Fundamental Physics". He was part of a trio that won the 2004 physics Nobel prize for research that helped complete the Standard Model of particle physics. But when asked if physics will reach a unified theory of the fundamental forces of nature within 50 years, Gross has a surprising answer. "Currently, I spend part of my time trying to tell people... that the chances of you living 50 [more] years are very small." Cold War estimates for a 1% chance of nuclear war each year seem low, Gross says. "The chances are more likely 2%. So that's a 1-in-50 chance every year." David Gross: The expected lifetime, in the case of 2% [per year], is about 35 years. [The expected lifetime is the average time it would take to have had a nuclear war by then. It is calculated using similar equations as those used to determine the "half-life" of a radioactive material.] Live Science: So what do you suggest as remedies to lower that risk? Gross: We had something called the Nobel Laureate Assembly for reducing the risk of nuclear war in Chicago last year. There are steps, which are easy to take - for nations, I mean. For example, talk to each other. In the last 10 years, there are no treaties anymore. We're entering an incredible arms race. We have three super nuclear powers. People are talking about using nuclear weapons; there's a major war going on in the middle of Europe; we're bombing Iran; India and Pakistan almost went to war. OK, so that's increased the chance [of nuclear war]. I would really like to have a solid estimate - it might be more, and I think I'm being conservative - but a 2% estimate [of nuclear war] in today's crazy world. Live Science: Do you think we'll ever get to a place where we get rid of nuclear weapons? Gross: We're not recommending that. That's idealistic, but yes, I hope so. Because if you don't, there's always some risk an AI 100 years from now [could launch nuclear weapons], but chances of [humanity] living, with this estimate, 100 years, is very small, and living 200 years is infinitesimal. So [the answer to] Fermi's question of "Where are the civilizations, all the intelligent organisms around the galaxy, and why don't they talk to us?" is that they've killed themselves... There are now nine nuclear powers. Even three is infinitely more complicated than two. The agreements, the norms between countries, are all falling apart. Weapons are getting crazier. Automation, and perhaps even AI, will be in control of those instruments pretty soon... It's going to be very hard to resist making AI make decisions because it acts so fast. He points out that with the threat of climate change, "people have done something," even though "It's a much harder argument to make than about nuclear weapons. "We made them; we can stop them." Thanks to hwstar (Slashdot reader #35,834) for sharing the article.

Is the Iran War Driving a Surge of Interest in Electric Cars?

In October and through November, America's EV sales reached their lowest point since 2022 after government subsidies expired, remembers Time. "But first-quarter data for 2026 shows that used EV sales were 12% higher than the same time last year and 17% higher than the previous quarter. "One factor likely helping push buyers toward these cars is high gas prices, which recently topped $4.00 a gallon for the first time in four years," they write - but it's not just in the U.S. Instead, they argue the conflict "is driving a global surge of interest in electric vehicles..." In the U.K., electric car sales reached a record high, with 86,120 vehicles sold in March... The French online used-car retailer Aramisauto reported its share of EV sales nearly doubled from February 16 to March 9, rising to 12.7% from 6.5%, while sales of fueled models dropped to 28% of sales from 34%, and sales of diesel models dropped to 10% from 14%. Germany's largest online car market, mobile.de, told Reuters that the share of EV searches on its website has tripled since the start of March - from 12% to 36%, with car dealers receiving 66% more enquiries for used EVs than in February. South Korea reported that registrations for electric vehicles more than doubled in March compared to the prior year, due in part to rising fuel prices and government subsidies... In New Zealand, more than 1,000 EVs were registered in the week that ended on March 22, close to double the week before, making it the country's biggest week for electric vehicle registrations since the end of 2023, according to the country's Transport Minister, Chris Bishop. In America, Bloomberg also reports 605 high-speed EV charging stations switched on in just the first three months of 2025, "a 34% increase over the year-earlier period," according to their analysis of federal data. A data platform focused on EV infrastructure tells Bloomberg that speedier and more reliable chargers are convincing more drivers to go electric and use public plugs.

Ars Technica

Blue Origin's rocket reuse achievement marred by upper stage failure

Blue Origin's reused first stage hit its targets, but New Glenn's upper stage did not.

19 Apr 2026 6:19pm GMT

I’ve fired one of America’s most powerful lasers—here’s what a shot day looks like

The laser was used to study the physics of stellar interiors and fusion energy, among other things.

19 Apr 2026 11:17am GMT

18 Apr 2026

Ars Technica

Great white sharks are overheating

The sharks might also be the most physiologically vulnerable to warming waters.

18 Apr 2026 11:07am GMT

16 Apr 2026

OSnews

Nationwide bill to put age verification in operating systems introduced in the US

The title of my article on age verification in Linux and other operating systems had a "for now" added for a reason, and here we are, with two members of the US Congress introducing a bill to add age verification to operating systems. The text of the proposed bill was only published today, and it's incredibly vague and wishy-washy, without any clear definitions and ton of open-ended questions. Still, if passed, the bill would require actual age verification, instead of mere voluntary age reporting that current state-level bills cover. It also seems to eschew the concept of age brackets, giving application developers access to specific ages of users instead. It's a vague mess of a bill that no sane person would ever want passed, but alas, sanity is a rare commodity these days, especially in US Congress. It's introduced by Democrat Josh Gottheimer and Republican Elise M. Stefanik, so it has that bipartisan sheen to it, which could increase its odds of going anywhere. At the same time, though, US Congress is about as useful as a box of matches during a house fire, so for all we know, this will end up going nowhere as its members focus on doing absolutely nothing to reign in the flock of coked-up headless chickens passing for an executive branch over there. If something like this gets passed, every US-based operating system - which includes most open source operating systems and Linux distributions - will probably fall in line when faced with massive fines and legal pressure. This isn't going to be pretty.

16 Apr 2026 8:07pm GMT

15 Apr 2026

OSnews

Tribblix m34 for SPARC released

Tribblix, the Illumos distribution focused on giving you a classic UNIX-style experience, doesn't only support x86. It also has a branch for SPARC, which tends to run behind its x86 counterpart a little bit and has a few other limitations related to the fact SPARC is effectively no longer being developed. The Tribblix SPARC branch has been updated, and now roughly matches the latest x86 release from a few weeks ago. The graphical libraries libtiff and OpenEXR have been updated, retaining the old shared library versions for now. OpenSSL is now from the 3.5 series with the 3.0 api by default. Bind is now from the 9.20 series. OpenSSH is now 10.2, and you may get a Post-Quantum Cryptography warning if connecting to older SSH servers. 'zap install' now installs dependencies by default. 'zap create-user' will now restrict new home directories to mode 0700 by default; use the -M flag to choose different permissions. Support for UFS quotas has been removed. ↫ Tribblix release notes There's no new ISO yet, so to get to this new m34 release for SPARC you're going to have to install from an older ISO and update from there.

15 Apr 2026 8:18pm GMT

Haiku on ARM64 boots to desktop in QEMU

Another Haiku monthly activity report, but this time around, there's actually a big ticket item. Haiku has been in a pretty solid and stable state for a while now, so the activity reports have been dominated by fairly small, obscure changes, but during March a major milestone was reached for the ARM64 port. smrobtzz contributed the bulk of the work, including fixes for building on macOS on ARM64, drivers for the Apple S5L UART, fixes to the kernel base address, clearing the frame pointer before entering the kernel, mapping physical memory correctly, the basics for userland, and more. SED4906 contributed some fixes to the bootloader page mapping, and runtime_loader's page-size checks. Combined, these changes allow the ARM64 port to get to the desktop in QEMU. There's a forum thread, complete with screenshots, for anyone interested in following along. ↫ waddlesplash While it's only in QEMU, this is still a major achievement and paves the way for more people to work on the ARM64 port, possibly increasing its health. There's tons of smaller changes and fixes all over the place, too, as usual, and the team mentions beta 6 isn't quite ready yet, still. Don't let that stop you from just downloading the latest nightly, though - Haiku is mature enough to use it.

15 Apr 2026 3:10pm GMT