The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The population of the Earth has more than doubled since 1950.
151
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