Buzz Aldrin’s mother’s maiden name was Moon.
9
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
If two pieces of metal touch in space, they become permanently stuck together.
807
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Summer on Uranus lasts for 21 years.
358
Sound doesn't travel in space.
255