In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Earth is the only planet in our solar system that's not named after a god or goddess.
17
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
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.
6
Lightning strikes about 6,000 times per minute on this planet!
158
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Only 55% of Americans know that the sun is a star.
986
It takes eight and a half minutes for light to get from the sun to earth.
159