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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The light hitting the earth right now is 30 thousand years old.
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