It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
It would take more than 150 years to drive a car to the sun.
569
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Mars had an oxygen-rich atmosphere around 4 billion years ago
13