Only 55% of Americans know that the sun is a star.
986
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The earth rotates more slowly on its axis in March than in September.
145
41% of the moon is not visible from earth at any time.
103
If two pieces of metal touch in space, they become permanently stuck together.
808
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160