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
Astronauts cannot burp in space.
232
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Only 55% of Americans know that the sun is a star.
986
The earth travels through space at 660,000 miles per hour.
189
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16