A comet's tail always points away from the sun.
2
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
It 'snows' metal on Venus.
13
If two pieces of metal touch in space, they become permanently stuck together.
808
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46