There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
It would take more than 150 years to drive a car to the sun.
569
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
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
It 'snows' metal on Venus.
13
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Sound doesn't travel in space.
255