Summer on Uranus lasts for 21 years.
358
A comet's tail always points away from the sun.
2
NASA invented baby food as we know it today.
7
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
If NASA sent birds into space they would soon die; they need gravity to swallow.
146