A comet's tail always points away from the sun.
2
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
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
Some asteroids have other asteroids orbiting them.
131
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127