The earth travels through space at 660,000 miles per hour.
189
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
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
A comet's tail always points away from the sun.
2