The Artemis II test flight is the next step of NASA's plans for a moon base and sustained lunar living. And as part of the grand space experiment, scientists are studying how astronauts sleep in zero gravity.

Russian astronaut Vasily Tsibliyev hadn’t had a good night’s sleep for 12 days. He was being kept awake on purpose, as part of a study about sleeping on board the space station Mir. On the 13th day, June 25, 1997, he was assigned to guide a cargo ship ...

It's hard being in space. You're isolated from friends and loved ones, your mitochondria get damaged, you get dumber, and you might just get stranded for months at a time (and get under $1,500 for it). Oh, and according to a study just published, your ...