Scientists Invent Underwater Umbrellas to Protect Coral Reefs—and It Appears to Be Working

ArXiv limits preprint submissions to two per month per submitter, as AI access fuels a record 40,363…

Kat Boboris / arXiv: ArXiv limits preprint submissions to two per month per submitter, as AI access fuels a record 40,36…

OpenAI Has Sent Notices of Sketchy AI Behavior to Over 100 Organizations So Far

None of the instances of what OpenAI calls “misaligned agent activity" have been as severe as the Hugging Face attack so…

Hurdle hints and answers for October 2, 2026

Hints and answers to today's Hurdle all in one place.