A comet's tail always points away from the sun.
2
It 'snows' metal on Venus.
13
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
Some asteroids have other asteroids orbiting them.
131
It would take more than 150 years to drive a car to the sun.
569
Pluto is smaller than Russia.
9