Summer on Uranus lasts for 21 years.
358
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
Pluto is smaller than Russia.
9
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8