The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The earth rotates more slowly on its axis in March than in September.
145
If two pieces of metal touch in space, they become permanently stuck together.
808
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18