A 100-pound person on Earth would weigh 38 pounds on Mars.
102
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The heart of an astronaut actually gets smaller when in outer space.
216
The population of the Earth has more than doubled since 1950.
151
Astronauts cannot burp in space.
232
Earth is the only planet in our solar system that's not named after a god or goddess.
17