On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
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
It takes eight and a half minutes for light to get from the sun to earth.
159
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
If two pieces of metal touch in space, they become permanently stuck together.
808
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The Earth gets 100 tons heavier every day due to falling space dust.
673