Sound doesn't travel in space.
255
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
It 'snows' metal on Venus.
13