The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
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
If two pieces of metal touch in space, they become permanently stuck together.
808
The sun puts out more power in 1 second than mankind has ever used within human existence.
14