Sound doesn't travel in space.
255
The light hitting the earth right now is 30 thousand years old.
163
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
If you went out into space, you would explode before you suffocated because there's no air pressure.
149