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Mercury is , along with Venus, the only planet in our solar system with no moon
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Mercury is one of only two elements in the periodic table (Bromine is the other) that is liquid at room temperature.
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A day on Mercury lasts two Mercurian years.
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The biggest moon in our solar system, Jupiter's Ganymede, is bigger than Mercury
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The Planets "My Very Educated Mother Just Served Us Noodles"Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
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Mercury is small --- if Earth were a cherry tomato, it would be the size of a peppercorn
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Venus and Mercury are the only two planets in our solar system that do not have any moons.
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