If you went out into space, you would explode before you suffocated because there's no air pressure.
149
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Pluto is smaller than Russia.
9
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
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.
3