There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
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
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
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
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10