Some asteroids have other asteroids orbiting them.
131
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
The population of the Earth has more than doubled since 1950.
151
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Summer on Uranus lasts for 21 years.
358