The light hitting the earth right now is 30 thousand years old.
163
A comet's tail always points away from the sun.
2
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
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