The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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Jupiter is bigger than all the other planets combined.
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When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
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There are more nerve cells in the human brain than there are stars in the Milky Way.
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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
Mars had an oxygen-rich atmosphere around 4 billion years ago
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