If two pieces of metal touch in space, they become permanently stuck together.
808
41% of the moon is not visible from earth at any time.
103
The earth is .02 degrees hotter during a full moon.
157
A comet's tail always points away from the sun.
2
The earth rotates more slowly on its axis in March than in September.
145
It would take more than 150 years to drive a car to the sun.
569
Astronauts get taller when they are in space.
224
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178