The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
If two pieces of metal touch in space, they become permanently stuck together.
808
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Astronauts get taller when they are in space.
224
The Earth gets 100 tons heavier every day due to falling space dust.
673
Sound doesn't travel in space.
255