It 'snows' metal on Venus.
13
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
Pluto is smaller than Russia.
9
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6