The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
The heart of an astronaut actually gets smaller when in outer space.
216
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88