Ars Technica

These days, one would be forgiven for forgetting that SpaceX is, at its core, a rocket company. Consider the company's mega deals over the last year. SpaceX paid $17 billion—more than it has spent developing every one of its rockets—to EchoStar for wireless spectrum to boost its Starlink network. It revealed plans to launch 1 million orbital data centers. SpaceX merged with xAI in a deal that valued Elon Musk's artificial intelligence firm at $250 billion, and it announced plans to become a majo

For most of the past year, it looked like prediction markets had kicked off a new golden age of fraud. On Polymarket, traders raked in fortunes from suspiciously timed bets on geopolitical events like the raid on Venezuela and the Iran War. It wasn’t clear whether the US government would bother pursuing some of the most flagrant bad actors, since Polymarket’s crypto-based platform was technically offshore and not regulated or licensed within the country. Now, however, the Commodity Futures Tradi

Russian universities are promising free tuition and up to $70,000 to students who are willing to serve as drone pilots in the Russian military for a year—all while claiming students can avoid the risk of frontline combat duty in Ukraine. But there has already been one confirmed battlefield death and possibly more among the new cadre of student drone pilots. That specific recruitment offer appeared on pamphlets distributed at Bauman Moscow State Technical University, according to Bloomberg. Other

After several authors and class members raised objections to Anthropic's $1.5 billion settlement over its widespread book piracy to train AI, a federal judge has delayed final approvals of the settlement. On Thursday, US District Judge Araceli Martinez-Olguin declined to rubber-stamp what's regarded as the largest copyright settlement in US history. Instead, she wanted to better understand why some class members were objecting and opting out of the settlement. So, she asked authors to address ke

In a press briefing Friday, officials for the World Health Organization announced that the case count of the hantavirus outbreak on the cruise ship MV Hondius in the South Atlantic has shrunk from 11 cases to 10 after a previously reported US case was found to be a false positive. That US case was originally reported by US health officials as "mildly positive," and the WHO had considered it "inconclusive," but still counted in the outbreak as a case in the agency's May 13 outbreak report and in

It's been a three-year wait, but Prime Video finally released the series finale for Good Omens: a 90-minute single episode that sought to wrap everything up in a neat little bow. Verdict: Truncating the final season so drastically definitely hurts the first half of the series finale, which feels chaotic and rushed. But once that stupendous on-screen chemistry between co-stars David Tennant and Michael Sheen kicks back in, the old magic shines through, strong as ever, giving us a fitting end to t

Coal is by far the most polluting fuel that we use. It produces the most carbon emissions per unit of energy, and impurities in the coal produce a lot of sulfur dioxide aerosols, as well as nitrous and nitrogen oxides. Then there’s the coal ash that’s left behind, which typically contains a lot of toxic metals. The health benefits of displacing coal power are typically estimated to be well above the costs of the new generating equipment.  But a new study suggests that the problems with coal-deri

Weather-monitoring company AcuRite is forcing device owners to use a new companion app on May 30, frustrating some long-time customers. AcuRite, which sells devices such as weather stations, indoor thermometers, and rain gauges, began emailing customers last month that they’d soon have to control their devices with the AcuRite Now iOS and Android app. AcuRite first launched the app in June 2025 to control a new weather station, the AcuRite Optimus. However, owners of AcuRite devices had still be

The world's leading space powers desperately want to know what the others are up to high above the equator. For more than a decade, the US military has operated a fleet of "inspector" satellites designed to sidle up to other spacecraft in geosynchronous orbit and take pictures. China started launching its satellites for a similar mission in 2018. Ars has written about these activities in geosynchronous orbit (GEO) before, but the last few months have seen a couple of interesting developments. Fi

The Africa Centres for Disease Control and Prevention on Friday confirmed an Ebola outbreak in the Northeastern Ituri province of the Democratic Republic of the Congo. Officials in Uganda subsequently reported that the deadly hemorrhagic disease had spilled over the border, with one "imported" confirmed case identified in Kampala, the capital. So far, the DRC has reported 246 suspected cases and 65 deaths, mainly in the Mongwalu and Rwampara health zones. Although it is now just being reported,

AI-generated slop has shown up everywhere, including in the peer-reviewed literature. Fake citations, unedited prompt responses, and nonsensical diagrams have all slipped past editors and peer reviewers, and it's not always clear if there are any consequences for the people responsible. Now, it appears that a number of scientific fields will be enforcing rules against AI-generated problems even before peer review or journals get involved. One of the people involved in the physics and astronomy p

OpenAI is reportedly exploring legal options after Apple's ChatGPT integration into its products didn't live up to the AI firm's expectations. When the deal was announced, Apple likened features linking Siri to ChatGPT to its now-infamous deal embedding Google search in the Safari browser, insiders granted anonymity to discuss the "strained" partnership told Bloomberg. And the promise of that excited OpenAI, which expected the deal "could generate billions of dollars per year in subscriptions,"

When Volkswagen introduced the first Golf GTI in Europe in 1976, it might not have been the first hot hatchback, but it quickly became the gold standard version. Unlike in America, where big cars were cheap and fuel even cheaper, small European streets and even smaller car-buying budgets necessitated vehicles a little more economical in both size and fuel consumption. Small, front-wheel-drive hatchbacks were the answer, but they weren't particularly exciting. The GTI changed that perception with

Cement production alone currently accounts for about 8 percent of global CO2 emissions, so considerable effort is going into lowering that number. Efficiency can be increased, and energy sources can be swapped for cleaner ones, but a stubborn reality remains: The byproduct of turning limestone into lime during cement production releases CO2 gas. These “direct process emissions” are actually slightly larger than the emissions from burning fuel to heat the kilns and drive this process. A new paper

A bill focused on maintaining long-term playable access to online games has passed out of the California Assembly's appropriations committee, setting up a floor vote by the full legislative body. The advancement is a major win for Stop Killing Games' grassroots game preservation movement and comes over the objections of industry lobbyists at the Entertainment Software Association. California's Protect Our Games Act, as currently written, would require digital game publishers who cut off support

After US government policies wrecked the country's electric vehicle market, automakers have been scrambling to adapt. The loss of federal clean vehicle tax incentives and funding for charging infrastructure, combined with capricious tariffs, has resulted in a 28 percent drop in EV sales for the first three months of the year. That's a far cry from just a few years ago, when optimism abounded and a strong commitment to an EV-heavy portfolio translated into a higher share price. As those commitmen

This week, a company called Casimir Inc. emerged from “stealth mode” to announce that it had raised significant funding from venture capitalists willing to roll the dice on free energy. That’s right: a startup has gotten serious backing to develop sources of perpetual free energy. The people behind this fantastic new energy generator also brought us the wildly successful WTF thruster EM-drive that could supposedly directly convert electricity into a propulsive force. (Its one practical applicati

Welcome to Edition 8.41 of the Rocket Report! The stories of the world's two most powerful rockets are now intertwined. Hardware for NASA's third Space Launch System rocket is coming together at Kennedy Space Center in Florida, while SpaceX is readying its first upgraded Starship Version 3 rocket for liftoff from Starbase, Texas. The readiness of each vehicle, along with Blue Origin's New Glenn rocket and Blue Moon lander, will go a long way toward determining the schedule and content of NASA's

More and more routine vaccines are being linked to lower risks of dementia. Shots against seasonal flu, RSV, tetanus, diphtheria, and pertussis (Tdap), pneumococcal infections, hepatitis A and B, and typhoid have all been linked to lower risks. And one of the strongest connections is from vaccination against shingles, with more data supporting the link still coming in. But as the evidence mounts, scientists continue to puzzle over the pleasant surprise—how are vaccines that target specific patho

The latest example of burgeoning opposition to rapid data-center development in Pennsylvania came at a town hall meeting overflowing with frustration about how the state is managing the surge. As about 225 people watched, more than 20 speakers in the two-hour online forum late Wednesday spoke about resistance to an industry they blame for rising electricity prices, heavy water use, noise pollution and rural industrialization. Gov. Josh Shapiro, who has tried to thread the needle of welcoming dat