A 100-pound person on Earth would weigh 38 pounds on Mars.
102
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
It 'snows' metal on Venus.
13
Sound doesn't travel in space.
255
41% of the moon is not visible from earth at any time.
103