More than 20 million meteoroids enter Earth's atmosphere every day.
139
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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