Sound doesn't travel in space.
255
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Summer on Uranus lasts for 21 years.
358
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
The earth is .02 degrees hotter during a full moon.
157