If two pieces of metal touch in space, they become permanently stuck together.
808
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A comet's tail always points away from the sun.
2