The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
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 approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts cannot burp in space.
232
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Today's top fuel dragsters take off with more force than the space shuttle.
120