There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
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
Jupiter is bigger than all the other planets combined.
254
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
A comet's tail always points away from the sun.
2
Astronauts cannot burp in space.
232
A 100-pound person on Earth would weigh 38 pounds on Mars.
102