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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46