Summer on Uranus lasts for 21 years.
358
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
More than 20 million meteoroids enter Earth's atmosphere every day.
139
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Venus is the only planet that rotates clockwise.
310