NASA completed its first medical evacuation early Thursday, when an ailing astronaut and three others splashed down in the Pacific Ocean, more than a month ahead of schedule.

SpaceX is gearing up for its third rocket launch of 2026 from California.

"We demonstrate comprehensive brain position changes within the cranial compartment following spaceflight and an analog environment," writes a team led by physiologist Rachael Seidler of the Universit...