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Planets
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In 2014, exoplanet Kepler-186f was found in the habitable zone of its system’s star. It is just one of 40 discovered exoplanets providing information about the potential for life outside Earth. From masses of rock to gas and ice giants, planets can tell us a lot about the rest of the universe. This title takes readers through the beginnings of these celestial bodies, why we study them, and much more!