There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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 Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
It would take more than 150 years to drive a car to the sun.
569
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Earth is the only planet in our solar system that's not named after a god or goddess.
17
If NASA sent birds into space they would soon die; they need gravity to swallow.
146