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
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Only 55% of Americans know that the sun is a star.
986
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236