Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The population of the Earth has more than doubled since 1950.
151
It 'snows' metal on Venus.
13
A comet's tail always points away from the sun.
2
If two pieces of metal touch in space, they become permanently stuck together.
808
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Pluto is smaller than Russia.
9