Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
Lightning strikes about 6,000 times per minute on this planet!
158
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Only 55% of Americans know that the sun is a star.
986