Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Beatriz Flamini was 48 when she entered the Granada cave in November 2021, and 50 when she emerged on Friday. Her experiment aims to shed light on the physical and mental effects of isolation.

A study of plastic trash hauled out of the Pacific Ocean found that most of it had been colonized by coastal life that was thriving right next to species that normally live in the open sea.

The 400-foot-tall, stainless steel Starship could one day shuttle humans to the moon. But getting the rocket to fly is no easy feat, and it'll be 48 hours until the team can try again, SpaceX said.