The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Jupiter is bigger than all the other planets combined.
254
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
It takes eight and a half minutes for light to get from the sun to earth.
159
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124