Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Astronauts get taller when they are in space.
224
The light hitting the earth right now is 30 thousand years old.
163
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
41% of the moon is not visible from earth at any time.
103