U.S. scientists brace for tighter scrutiny of potentially risky research

New ancient 'marine crocodile' discovered on UK's Jurassic Coast -- and it's one of the oldest specimens of its type ever found

Radiotherapy for female with lymphoma is more effective in the afternoon than in the morning, study suggests that there’s a 12.5 times reduced mortality rate

Green comet C/2022 E3 (ZTF) will be closest to Earth on Feb. 1. Here's how to see it.