If two pieces of metal touch in space, they become permanently stuck together.
808
A comet's tail always points away from the sun.
2
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts cannot burp in space.
232