Summer on Uranus lasts for 21 years.
358
Buzz Aldrin’s mother’s maiden name was Moon.
9
If two pieces of metal touch in space, they become permanently stuck together.
808
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Venus is the only planet that rotates clockwise.
310