Why the Last 30 Percent of Uranium Enrichment Is the Easiest Part
Iran has 440.9 kg of uranium at 60% purity — and the physics of enrichment mean the sprint to 90% weapons-grade is the shortest leg.
Technology
Anthropic's Mythos Model Has Treasury Secretary Summoning Bank CEOs
An AI model that finds decade-old security flaws in every major operating system has Wall Street reconsidering what's defensible.
Two Independent Experiments Fail to Replicate the Most Famous Dark Matter Signal
COSINE-100 and ANAIS-112 both reject DAMA's celebrated dark matter detection at better than 3 sigma.
CMS Measures the W Boson Mass With Record Precision, and the Standard Model Holds
CMS measured the W boson at 80,360.2 MeV, and the Standard Model's most recent scare looks a lot less scary now.
LEO Collision Risk Jumps 20 Percent as ESA Approves Record Space Safety Budget
Forty thousand objects tracked, 1.2 million invisible, and the debris density at 550 km is now the same order of magnitude as active satellites.