The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Summer on Uranus lasts for 21 years.
358
Astronauts cannot burp in space.
232
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Sound doesn't travel in space.
255
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219