A 100-pound person on Earth would weigh 38 pounds on Mars.
102
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The earth rotates more slowly on its axis in March than in September.
145
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
Astronauts cannot burp in space.
232