Neil deGrasse Tyson explains the key to sex in space: 'Bring a lot of leather belts'

StarTalk host Neil deGrasse Tyson explained how sex in space can illustrate Newtonian laws of motion in a short video posted by National Geographic.

"You're there in space and you move toward someone and they just sort of bounce off. The movement is sort of preserved -- there's no friction. So if you want to get together [and] stay together, you need something to keep you together during all the normal body movements that would characterize having sex in space. So, yeah, bring a lot of leather belts. Keep things strapped down and you'll be just fine."

At the same time, he said, zero-gravity is not a pre-requisite for being in space; a rotating space station, the astrophysicist explained, can create any fraction of gravity a person wants.

"You can be in space and on that perimeter of 1-G and it is no different than what you'd be doing here on Earth," he said.

Watch deGrasse Tyson tackle the question of sex in space, as posted online, below.

[h/t The Daily Beast]