Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The light hitting the earth right now is 30 thousand years old.
163
Sound doesn't travel in space.
255
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
Pluto is smaller than Russia.
9
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
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