Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
It takes eight and a half minutes for light to get from the sun to earth.
159
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
