The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
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
Some asteroids have other asteroids orbiting them.
131
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The earth rotates more slowly on its axis in March than in September.
145
Astronauts cannot burp in space.
232
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13