If two pieces of metal touch in space, they become permanently stuck together.
808
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46