Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The earth travels through space at 660,000 miles per hour.
189
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
A comet's tail always points away from the sun.
2
Astronauts cannot burp in space.
232