Some asteroids have other asteroids orbiting them.
131
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
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 Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Summer on Uranus lasts for 21 years.
358
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