Pluto is smaller than Russia.
9
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Buzz Aldrin’s mother’s maiden name was Moon.
9
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
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15