Usain Bolt takes on laws of physics in zero gravity race
The fastest man on the planet was high above the earth, helping to promote a champagne bottle designed for space tourists.
Watch stunning view of Earth from Virgin Galactic spaceplane01:00
Watch Virgin Galactic spaceplane make successful test flight02:56
How far into space is NASA's Voyager 2 right now? (Very, very, very far)01:18
This is what the wind sounds like on Mars01:21
Chinese spacecraft aims to explore far side of moon00:45
What a giant tortoise’s genome can teach us about longevity01:14