Most people picture astronauts floating weightlessly through gleaming corridors, and that image is accurate enough during the waking hours. Sleep, though, is a different matter. When the lights go ...
Researchers from the German Research Center for Artificial Intelligence (DFKI) and the University of ...
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 ...