Sound doesn't travel in space.
255
The light hitting the earth right now is 30 thousand years old.
163
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
If two pieces of metal touch in space, they become permanently stuck together.
808
Pluto is smaller than Russia.
9
If NASA sent birds into space they would soon die; they need gravity to swallow.
146