Sleep deficiency is pervasive among astronauts before and during space flight, and the reported incidence of sleep-promoting medication use is 20 times greater than the proportion of Americans ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Life on board the International Space Station takes some getting used to. Being weightless affects everything from the way food ...

Astronaut Danny Olivas describes some of the interesting sensations astronauts experience while sleeping in space. This video is one in a series developed for the Holt Scholars Program. Access the ...

Space intrigues all, especially children. So when the students of different schools here got the opportunity to talk to astronaut Shubhanshu Shukla, who is onboard the International Space Station (ISS ...

PITTSBURGH (AP) – After three months in space, astronauts lose sleep and sleep less soundly because the lack of gravity and the absence of day-and-night cues throw off their internal clocks, according ...

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) ...

Being weightless affects everything from the way food tastes to getting a good night's sleep. Here's what it's like to spend months in space. Ask any astronaut who has spent extended periods in the ...