The light hitting the earth right now is 30 thousand years old.
163
It 'snows' metal on Venus.
13
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The heart of an astronaut actually gets smaller when in outer space.
216
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
The earth rotates more slowly on its axis in March than in September.
145
If two pieces of metal touch in space, they become permanently stuck together.
808