If NASA sent birds into space they would soon die; they need gravity to swallow.
146
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
If two pieces of metal touch in space, they become permanently stuck together.
808
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277