Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
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 heart of an astronaut actually gets smaller when in outer space.
216
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The Earth gets 100 tons heavier every day due to falling space dust.
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