Sound doesn't travel in space.
255
The Earth gets 100 tons heavier every day due to falling space dust.
673
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
There are two golf balls sitting on the moon.
721