Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Venus is the only planet that rotates clockwise.
310
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
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 would take more than 150 years to drive a car to the sun.
569