The light hitting the earth right now is 30 thousand years old.
163
Pluto is smaller than Russia.
9
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
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
NASA invented baby food as we know it today.
7
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
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147