The International Space Station is orbiting the Earth 7.527 times faster than the Moon.
On July 15th, 1965, Mariner IV sent back the first close-up pictures of Mars. Check out the history of Mars missions!
The Space Shuttle Atlantis flew its 33rd mission, marking the end of the U.S. shuttle program, two years ago today.
The Spirit Mars rover was launched 10 years ago today.
It performed all its functions using less power than a hand blender.