The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
The light hitting the earth right now is 30 thousand years old.
163
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
It would take more than 150 years to drive a car to the sun.
569
Today's top fuel dragsters take off with more force than the space shuttle.
120
41% of the moon is not visible from earth at any time.
103