It takes eight and a half minutes for light to get from the sun to earth.
159
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
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
Lightning strikes about 6,000 times per minute on this planet!
158
There are two golf balls sitting on the moon.
721
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5