It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to 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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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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It 'snows' metal on Venus.
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