In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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Pluto is smaller than Russia.
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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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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Sound doesn't travel in space.
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From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
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