The heart of an astronaut actually gets smaller when in outer space.
216
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
There are two golf balls sitting on the moon.
721
It would take more than 150 years to drive a car to the sun.
569
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
It 'snows' metal on Venus.
13