In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
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
Only 55% of Americans know that the sun is a star.
986
Astronauts cannot burp in space.
232
Lightning strikes about 6,000 times per minute on this planet!
158
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
Jupiter is bigger than all the other planets combined.
254