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Take a closer look at the smallest and innermost planet in our solar system with the 4-page PDF  ‘COSMIC TIDBITS Mercury FACTS’ fact sheet.  This detailed guide uncovers the mysteries of Mercury, a world of extreme temperatures, cratered surfaces, and a thin exosphere.  Learn about Mercury’s orbital path, its rotation, and the peculiar phenomenon of Mercury’s day-night cycle. Explore the discoveries made by various missions and understand why this tiny planet has a massive iron core.  Designed for learners from middle school to adults, this fact sheet is an excellent resource for anyone seeking to delve deeper into the swift secrets of Mercury.


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