One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The light hitting the earth right now is 30 thousand years old.
163
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
The heart of an astronaut actually gets smaller when in outer space.
216
The earth rotates more slowly on its axis in March than in September.
145
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
It takes eight and a half minutes for light to get from the sun to earth.
159