In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Buzz Aldrin’s mother’s maiden name was Moon.
9
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