Summer on Uranus lasts for 21 years.
358
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Venus is the only planet that rotates clockwise.
310
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
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Buzz Aldrin’s mother’s maiden name was Moon.
9