On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The earth travels through space at 660,000 miles per hour.
189
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
A comet's tail always points away from the sun.
2