Earth is the only planet in our solar system that's not named after a god or goddess.
17
Astronauts cannot burp in space.
232
The heart of an astronaut actually gets smaller when in outer space.
216
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
41% of the moon is not visible from earth at any time.
103
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
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9