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 ...

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, ...

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 ...

Mouse studies offer insight into how we keep track of geography. Scientists have known for decades that certain neurons in the hippocampus are dedicated to remembering specific locations where an ...

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) ...