Sound doesn't travel in space.
255
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Buzz Aldrin’s mother’s maiden name was Moon.
9
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
It takes eight and a half minutes for light to get from the sun to earth.
159
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The earth travels through space at 660,000 miles per hour.
189