The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
It 'snows' metal on Venus.
13
Summer on Uranus lasts for 21 years.
358
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Pluto is smaller than Russia.
9
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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277