Sound doesn't travel in space.
255
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The earth rotates more slowly on its axis in March than in September.
145
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
Buzz Aldrin’s mother’s maiden name was Moon.
9