The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
NASA invented baby food as we know it today.
7
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4