Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
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
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
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
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6