A look at the challenges astronauts face while living weightless in space for weeks or months at a time.

Artemis astronauts: From weightlessness to 'heavyweight' After 10 days of weightlessness, acclimating to Earth will take some time for the Artemis II astronauts.

Researchers from the German Research Center for Artificial Intelligence (DFKI) and the University of Duisburg-Essen (UDE) participated in the 46th DLR parabolic flight campaign in Bordeaux (May 11–22, ...

Olympic medallist Matthew Wells rows as hard as he can as his body begins to float up for 22 seconds. Instead of a boat and water beneath him, he is 8500m (28000 ft) above the ground on a plane ...