It takes eight and a half minutes for light to get from the sun to earth.
159
There are two golf balls sitting on the moon.
720
More than 20 million meteoroids enter Earth's atmosphere every day.
138
A comet's tail always points away from the sun.
1
Pluto is smaller than Russia.
9
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The population of the Earth has more than doubled since 1950.
151