Sound doesn't travel in space.
255
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Astronauts get taller when they are in space.
224
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15