If two pieces of metal touch in space, they become permanently stuck together.
808
It would take more than 150 years to drive a car to the sun.
569
Venus is the only planet that rotates clockwise.
310
Some asteroids have other asteroids orbiting them.
131
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194