If two pieces of metal touch in space, they become permanently stuck together.
808
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
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
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277