Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Jupiter is bigger than all the other planets combined.
254
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The Earth gets 100 tons heavier every day due to falling space dust.
673
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
It 'snows' metal on Venus.
13
It takes eight and a half minutes for light to get from the sun to earth.
159