The Earth gets 100 tons heavier every day due to falling space dust.
673
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The earth travels through space at 660,000 miles per hour.
189
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100