Humans adapt. We live in trackless deserts, on the tops of mountains, in pestilential jungles, in prisons and hospitals. To survive we sleep, for we need sleep like food. We adapt to sleeping in space ...

Since the beginning of the space program, astronauts have dealt with the realities of spaceflight from microgravity in weak muscles and space radiation, to sleep deprivation and disorientation. Both ...

Going to space is hard on the human body for a number of reasons. The microgravity environment causes muscle and bone loss and leads to fluids pooling in the upper parts of the body. Being in space ...

Astronaut Ron Garan sleeps in his sleeping bag on the International Space Station in 2008. (NASA) In March, two NASA astronauts finally returned to Earth after an eight-day mission devolved into a 286 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Ever wonder where pilots sleep during a flight? One plane captain ...

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, ...