The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The heart of an astronaut actually gets smaller when in outer space.
216
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Pluto is smaller than Russia.
9
It takes eight and a half minutes for light to get from the sun to earth.
159
Venus is the only planet that rotates clockwise.
310