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
Astronauts cannot burp in space.
232
41% of the moon is not visible from earth at any time.
103
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
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
The earth travels through space at 660,000 miles per hour.
189