The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts cannot burp in space.
232
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
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The heart of an astronaut actually gets smaller when in outer space.
216