An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
A comet's tail always points away from the sun.
2
Jupiter is bigger than all the other planets combined.
254
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
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.
4