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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
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
Pluto is smaller than Russia.
9
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10