41% of the moon is not visible from earth at any time.
103
Pluto is smaller than Russia.
9
Lightning strikes about 6,000 times per minute on this planet!
158
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15