Chipmaker Nvidia is preparing to launch its own open source AI agent platform to compete with the likes of OpenClaw, according to a recent Wired report .

The magazine cites "people familiar with the company's plans" in reporting that Nvidia has been pitching the platform, which it is calling NemoClaw, to various corporate partners ahead of its annual developer conference next week. Salesforce, Cisco, Google, Adobe, and CrowdStrike are among the companies said to be in talks for those partnerships, though it's unclear what specific benefits those companies would receive for their association with the open source tool.

NemoClaw, as the somewhat awkward name suggests, would be a direct competitor of OpenClaw (previously known as Moltbot and Clawdbot), the system that attracted widespread attention in January for letting users direct "always-on" AI agents from their personal machines, using any number of underlying models. Last month, OpenAI hired OpenClaw creator Peter Steinberger "to drive the next generation of personal agents," as founder Sam Altman put it , though the OpenClaw project will be run by an independent foundation with OpenAI's support.

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On Tuesday, word spread that the National Institutes of Health was launching a series of what it's calling "Scientific Freedom Lectures," with the first scheduled for March 20 . The "freedom" theme echoes one of the major concerns of the director of the NIH, Jay Bhattacharya, who feels he suffered outrageous censorship of his ideas during the pandemic and is using his anger about it to fuel his efforts to bring change to the NIH. Given that scientific freedom is a major interest of the director, you might think that the first lecture would be delivered by a distinguished scientist. Guess again.

The speaker at the first lecture will be a former journalist best known for his fringe ideas on COVID and the climate. The topic will be the possibility that SARS-CoV-2 was accidentally released from a lab, an idea for which there is no scientific evidence.

Freedom for me

Bhattacharya was one of the signatories of the Great Barrington Declaration, which argued that we should try to protect the elderly and vulnerable but otherwise enable COVID to spread through the rest of the population. By and large, public health officials were aghast at the likely consequences—overwhelmed hospital systems, a still-substantial rate of mortality among healthy adults, the consequences of more cases of long COVID, etc.—and argued strongly against it.

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Between a certain car company's antics and the industrial chaos set off by COVID (and then compounded by Russia's invasion of Ukraine), it's easy to be cynical about production timelines. But when Rivian showed off a midsize electric vehicle in 2024 and said it would be available in the first half of this year, it meant it. Deliveries of the first R2 SUVs will begin this spring.

As a new automaker, Rivian often does things its own way, but with the R2 launch, it's following industry practice and starting with the superlative version first. That's the R2 Performance, which starts at $57,990 with the launch package (excluding a $1,495 delivery charge). You get quite a lot of electric SUV for that, however: up to 330 miles (531 km) from a single charge of the 87.9 kWh battery pack, with 656 hp (489 kW) and 609 lb-ft (825 Nm) from the dual motor powertrain. Fast charging takes 29 minutes from 10 to 80 percent.

AWD first

The Performance features semi-active suspension, a rear window that drops into the tailgate, an interior with birch accents, heating for the front and rear seats and ventilation for the former, a nine-speaker sound system, matrix LED headlights, and some other neat touches like the flashlight that lives in the side of the door, similar to how some cars hide an umbrella there .

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First, in the plainest language, before we get to anything else, Project Hail Mary is a fantastic film. It does right by its source material, and it also easily stands on its own for folks who haven't read the book. It comes out on March 20, and if you're a regular Ars Technica reader, you will almost certainly enjoy the crap out of it. Go see it as soon as you can, and see it in a theater where the big visuals will have the most impact.

Next, a word about what "spoiler-free" means here: In this short review, I'll talk about stuff that happens in the movie's many , many trailers . If you're an ultra-purist who is both interested in this film and who has also somehow avoided reading the book and also seeing any of the trailers, bail out now.

Otherwise, read on!

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For over a decade, Hino Motors Ltd. imported and sold more than 105,000 vehicles and engines with misleading or fabricated emissions data, until testing by the Environmental Protection Agency revealed the emissions-fraud scheme.

The case would lead the Toyota subsidiary to plead guilty and agree to pay over $1.6 billion in fines over five years and forfeit an additional $1 billion in profits made from the illicit sales.

On Monday, the EPA touted the case in its enforcement and compliance assurance results for the fiscal year ending Sept. 30, 2025, contending in a press release that the agency closed more cases in President Donald Trump’s first year of his second term than in any year of the Biden administration.

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We all remember that infamous scene in the 1983 classic, A Christmas Story , where a young boy licks a cold metal post on the playground and ends up getting his tongue stuck to the surface. It's practically a childhood rite of passage. A 1996 case study coined the term "tundra tongue" to describe the phenomenon. But how dangerous is it, really? And what's the best way to free one's tongue with minimal damage?

Anders Hagen Jarmund, a graduate student at the Norwegian University of Science and Technology (NTNU), experienced tundra tongue firsthand in his youth and had the same questions. So he decided to investigate the underlying science as part of his master's thesis, recruiting several colleagues to the project. This turned into two separate papers: one published in the International Journal of Pediatric Otorhinolaryngology, and the other in the journal Head & Face Medicine.

“I’m from a small place called Hattfjelldal, which is quite cold in the winter,” Jarmund said of the rationale for undertaking the project. “I don’t remember if it was a signpost or a lamppost behind the school, but I remember licking it and my tongue got stuck. This was an experience that my friends had also had, actually, and then we were wondering if it was actually dangerous, getting your tongue stuck to a lamppost or railing.” (Their experience was common, it seems; Norway actually passed legislation in 1998 to prohibit any bare metal in playground equipment.)

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Last week, IBM trumpeted its contributions to a rather unusual paper: the production of a molecule with a half-Möbius topology, assisted by an algorithm run in part on a quantum computer. There was, to put it mildly, a lot going on in this paper, and it took a little while to digest. But it's interesting in what it says about the sorts of chemistry that we can construct with tools developed over the past several decades, as well as how quantum computation is inching toward utility.

But getting the full picture requires about three different stories, so we'll go through each of them separately before bringing the big picture together.

Orbitals with a twist

Those of you who can still dredge up your high school chemistry lessons probably remember benzene, a six-carbon ring with alternating single and double bonds that kept all the carbons locked into a single plane, creating a flat molecule. What you are a bit less likely to remember is that the double bonding is mediated by orbitals that extend vertically above and below the nucleus of the carbon atoms. Thanks to the alternating single-double nature of the bonds, electrons in these orbitals end up delocalized; the differences between the bonds become a bit irrelevant, and the molecule is best viewed as having some of its electrons floating around in a cloud. The same would hold true for even larger molecules with the same sort of bonding arrangement.

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A NASA satellite that spent more than a decade coursing through the Van Allen radiation belts encircling Earth is about to fall back into the atmosphere.

Most of the spacecraft will burn up during reentry, but a fraction of the material making up the 1,323-pound (600-kilogram) satellite will likely reach Earth's surface without vaporizing in the atmosphere. Uncontrolled reentries of satellites with comparable mass happen quite regularly—multiple times per month, according to one recent study —but most of them are older spacecraft or spent rocket bodies.

This reentry is notable because it poses a higher risk to the public than the US government typically allows. The risk of harm coming to anyone on Earth is still low, approximately 1 in 4,200, but it exceeds the government standard of a 1 in 10,000 chance of an uncontrolled reentry causing a casualty.

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In September, the Trump administration took what it called "bold actions" on autism that included touting the generic drug leucovorin as a promising treatment. In a news release, Marty Makary, commissioner of the Food and Drug Administration, claimed a " growing body of evidence suggests" the drug could be helpful. And at a White House press event, Makary suggested it might help " 20, 40, 50 percent of kids with autism ."

" Hundreds of thousands of kids , in my opinion, will benefit," he said at another point in the event.

The bold claims were apparently persuasive. A study published in The Lancet last week found that new outpatient prescriptions of leucovorin for children ages 5 to 17 shot up 71 percent in the three months after the Trump administration's actions.

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