Although not formally banned, astronauts are strictly discouraged from having sex in space due to health, safety concerns.

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

This mission will pave the way for groundbreaking observations of everything from petroleum reserves to global supplies of ...

You're probably wondering how astronauts get comfortable while sleeping. Since there's no gravity in outer space, nobody needs a bed. However, astronauts still need to ensure they don't ...

Bones and muscles In the weightless environment of space, bones and muscles weaken ... and of course there is no weight in zero gravity, so you have to work against a resistance.

Why stand when you can float? How life without the effect of gravity changes us Space, it’s pretty safe to say, is hostile to us Earthlings. There’s no gravity to keep you and all the bones ...