The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
It takes eight and a half minutes for light to get from the sun to earth.
159
If two pieces of metal touch in space, they become permanently stuck together.
808
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
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The population of the Earth has more than doubled since 1950.
151