2025-12-11

No sterile neutrinos after all, say MicroBooNE physicists

There's a less than 5 percent chance that earlier anomalies can be explained by fourth neutrino "flavor." [...]

2025-12-11

Ars Live: 3 former CDC leaders detail impacts of RFK Jr.’s anti-science agenda

Join us Tuesday, December 16, at 2 pm ET to hear from leaders who resigned in protest. [...]

2025-12-10

This is the oldest evidence of people starting fires

We didn't start the fire. (Neanderthals did, at least 400,000 years ago.) [...]

2025-12-10

Many States Say They’ll Defy RFK Jr.’s Changes to Hepatitis B Vaccination

Most Democratic-led states will continue to recommend the hepatitis B vaccine at birth, despite a CDC advisory panel’s vote against it. [...]

2025-12-10

Geminids Is the Final Big Meteor Shower of 2025, and It's Coming Soon

This meteor shower can throw dozens of shooting stars per hour under ideal conditions. [...]

2025-12-10

‘It Was Nuts’: The Extreme Tests that Show Why Hail Is a Multibillion-Dollar Problem

The costs of a hail damage have ballooned over the past two decades, prompting researchers to resort to extreme measures to understand how these storms destroy buildings. [...]

2025-12-10

The 70% factuality ceiling: why Google’s new ‘FACTS’ benchmark is a wake-up call for enterprise AI

There's no shortage of generative AI benchmarks designed to measure the performance and accuracy of a given model on completing various helpful enterprise tasks — from coding to instruction fol [...]

2025-12-10

EU pledges 90 percent cut to carbon emissions by 2040

The European Union has provisionally agreed to reduce greenhouse gas emissions by 90 percent (based on 1990 levels) by 2040, the EU parliament announced in a press release. That goes beyond the goals [...]

2025-12-10

Trump is slashing science funding. Tech billionaires are stepping in with AI

Sam Altman, Mark Zuckerberg, and Jeff Bezos are trying to recreate what capitalism destroyed. The key difference is artificial intelligence [...]