In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The earth rotates more slowly on its axis in March than in September.
145
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The light hitting the earth right now is 30 thousand years old.
163