Summer on Uranus lasts for 21 years.
358
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
If NASA sent birds into space they would soon die; they need gravity to swallow.
146