Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
A comet's tail always points away from the sun.
2
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
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
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
It takes eight and a half minutes for light to get from the sun to earth.
159
Only 55% of Americans know that the sun is a star.
986
The earth is .02 degrees hotter during a full moon.
157