In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Pluto is smaller than Russia.
9
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Today's top fuel dragsters take off with more force than the space shuttle.
120
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6