The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
If two pieces of metal touch in space, they become permanently stuck together.
808
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The light hitting the earth right now is 30 thousand years old.
163