Sound doesn't travel in space.
255
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The earth rotates more slowly on its axis in March than in September.
145
The earth travels through space at 660,000 miles per hour.
189
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
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
Pluto is smaller than Russia.
9
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14