The light hitting the earth right now is 30 thousand years old.
163
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
41% of the moon is not visible from earth at any time.
103
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160