Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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Water, electricity, and gas has been free in Turkmenistan since 1991.
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