There are more nerve cells in the human brain than there are stars in the Milky Way.
349
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Pluto is smaller than Russia.
9
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46