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23 Sep 2026 10:38pm GMT

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23 Sep 2026 10:03pm GMT

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23 Sep 2026 9:01pm GMT

More than 200,000 barrels of low-level radioactive waste were stored on the floor of the Atlantic Ocean between 1949 and 1982, reports ScienceAlert. Whatever happened to those barrels? Scientists have descended to the wreckage in a crewed submersible to investigate - and found many of the barrels corroded and degraded, their contents spilling across the seafloor. Surprisingly, this isn't necessarily a subversion of the original plan... The International Atomic Energy Agency recommends that low-level waste be disposed of in robust containment in isolation for at least a few hundred years - but back in the mid-20th century, the recommendations were a little different. The contemporaneous guidelines recommended that containers needed to reach the seafloor intact and remain sealed only long enough for the short-lived radionuclides to decay. After that, the remaining waste was expected to slowly escape and disperse through the surrounding ocean. Not everything in the barrels would conveniently decay away, however. They contained a radioactive hodgepodge, including cesium-137, plutonium isotopes, and tritium, some of which can persist for thousands of years... [A] few years ago, nuclear engineer Patrick Chardon and marine geologist Javier Escartín of the French National Center for Scientific Research started to wonder what had become of the dumped waste. That question eventually became NODSSUM - Nuclear Ocean Dump Site Survey Monitoring - an interdisciplinary project bringing together nuclear physics, geology, oceanography, biology, and marine chemistry to find the barrels and investigate what, if anything, they were doing to the surrounding environment.... [T]he barrels also appeared to function as tiny oases on the otherwise sparsely populated sandy seafloor. Anemones had attached themselves to the barrels. Sponges, sea cucumbers, fish, and crustaceans lived around them, with crabs apparently particularly fond of the artificial shelters... Instruments aboard the ship detected significant signals of cobalt-60 and niobium-94, which the researchers could specifically link to the dumped waste... [Samples are now being analyzed] There is precedent, however, to suggest that even striking levels of radioactivity around a source don't necessarily spread very far. A recent study of the sunken Soviet submarine Komsomolets found radionuclide levels hundreds of thousands of times above background immediately around the leaking reactor - but those levels dropped sharply within just a few meters as the material dispersed through the seawater. The NODSSUM team similarly found that, despite the significant radioactive signals around the barrels, activity levels weren't high enough to pose major radiation-protection problems for the scientists handling the samples. [Their three-person submersible] Nautile and the instruments it carried showed no signs of contamination. The real achievement was mapping the exact location of the barrels. "None of this means the waste is harmless," the article concludes - but it also doesn't mean we're about to be overrun by radioactive crabs."

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23 Sep 2026 8:34pm GMT

$11M competition showed wildfire detection is still easier than stopping fires.

23 Sep 2026 8:28pm GMT

Discord will try to automatically estimate ages, require verification when it can't.

23 Sep 2026 8:05pm GMT

YouTube's next year could change the content you see with a big focus on AI and livestreams.

23 Sep 2026 7:35pm GMT

SparkyLinux 2026.09 is out based on Debian Forky Testing, featuring Linux kernel 7.2 and a new lightweight Labwc Wayland edition.

23 Sep 2026 7:00pm GMT

Canonical is switching Ubuntu kernel updates to overlapping two-week cycles, resulting in new kernel releases every week.

23 Sep 2026 5:33pm GMT

The distributed, offline-first bug tracker git-bug 0.11 introduces a revamped web UI, code browsing, GraphQL improvements, and new packages.

23 Sep 2026 5:16pm GMT

TechCrunch quipped it was like if startup school Y Combinator and Peter Thiel's build-a-company-instead of-college Fellowship Program had a baby. Silicon Valley venture capital firm Andreessen Horowitz is investing $35 million to launch a private school in San Francisco "aimed at turning high school graduates into founders," writes the SF Standard. Or, as CBS News describes it, "One blue-chip Silicon Valley investor has a proposal for young people who are questioning whether to attend college - enroll in AI school instead...." Specifically, the academy will provide instruction geared to subjects such as designing AI systems, fundraising for startups, selling businesses and storytelling. Students won't take tests or be assigned homework but will instead focus on building real projects. Courses will be taught by tech entrepreneurs, with the academy naming OpenAI CEO Sam Altman as either an instructor or guest lecturer. From the SF Standard: "There will be no traditional grades, tests, or homework," said the announcement. Instead, students will be encouraged to "build" in SF and work with partners from Anthropic, OpenAI, Google, Meta, and other firms. They'll be encouraged to live in campus housing in San Francisco. "The #1 goal is to help students learn to build, which is the most important skill in the AI era," Gagan Biyani, chief executive of the academy, wrote on X. Biyani cofounded the ed-tech startup Udemy... The school is opening applications for a Founding Class Fellowship a one-year, tuition-free program for around 50 students... The academy said it will bring in notable Silicon Valley names, like OpenAI's Sam Altman, as guest speakers and faculty. Students in the founding class will receive about $50,000 worth of computing credit - the sought-after currency in Silicon Valley to run AI models - as well as a $5,000 travel and research budget. The school is receiving funding from tech executives, including Fidji Simo, formerly of OpenAI and Instacart; Garry Tan, CEO of Y Combinator; and Tobi Lütke, CEO of Shopify. "In the AI era, it's more important to come out with a portfolio of projects that you worked on and work experience than it is to have a diploma or certificate," Biyani told the San Francisco Chronicle: Biyani said the academy plans to grow its enrollment and open a two-year program, pending regulatory approval, starting in the fall of 2028. Tuition is expected to be on par with the cost of an elite private university... The academy raised $42 million in funding led by Andreessen Horowitz. The ten founding partners are Anduril, Anthropic, Coinbase, Google, Meta, Nvidia, OpenAI, Palantir, Replit and Stripe. A network of hundreds of instructors, hiring partners and guest speakers includes OpenAI co-founder Sam Altman, Nvidia CEO Jensen Huang, neuroscientist Andrew Huberman and Microsoft chairman and CEO Satya Nadella, according to the academy's website. The FAQ describes a typical week by saying "Most of your time is yours to build. Each week, you share your progress with peers and practitioners, get direct feedback, and decide where to take your work next." Q: Can I use AI to help with my application? A: Yes. Use AI the way you'd use it on any project: to move faster, test ideas, and get past a blank page.... "The best assignments now are problems so hard they cannot be solved without AI," Andreessen Horowitz argued on X.com. "The Academy courses follow the same logic and will be taught by world-class leaders... The next generation will not be taught the way the last one was. The Academy is built for that world, and it begins in San Francisco." Thanks to long-time Slashdot reader theodp for sharing the news.

Read more of this story at Slashdot.

23 Sep 2026 4:04pm GMT

August 15: $62,991 September 23: $86,456 Bitcoin shot up 37% over the last 39 days, reaching an eight-month high on Monday. "Bitcoin is back," declares Yahoo Finance: The token held near $86,000 on Tuesday after a stunning multisession rally... [Fundstrat head of digital assets Sean Farrell told Yahoo Finance on Monday] "I think the crypto winter is over, although that does not necessarily mean the path higher will be linear." For now, momentum is on crypto's side, with bitcoin jumping more than 5% on Friday and another 6% on Monday. "We believe crypto is in the early innings of a new bull market and we see few signs of overheating," Compass Point analyst Ed Engel wrote on Tuesday. The move looks "like a combination of renewed ETF demand and a large short squeeze," Nicolai Søndergaard, senior research analyst at Nansen, said as traders betting against bitcoin are forced to buy it back, adding further fuel to the rally. Bitcoin got bad news and then good news last week. After the U.S. Congress failed Thursday to pass a cryptocurrency 'Clarity Act', America's Securities and Exchange Commission instead announced a tokenized-stock experiment. It's a five-year "innovation exemption" that "creates a path for tokenized U.S. stocks to trade through automated market makers on public blockchain," according to CoinDesk. Yahoo Finance notes that Bitcoin and other altcoins surged after the announcement.

Read more of this story at Slashdot.

23 Sep 2026 11:34am GMT