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Sara Seager is the Class of 1941 Professor of Physics and Planetary Science at the Massachusetts
Institute of Technology.
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Exoplanets are planets orbiting stars other than the sun. Astronomers have found over 300 exoplanets so far; most are giant planets like Jupiter. For thousands of years, people have wondered, “Are there other planets like Earth out there?” For the first time in human history we are on the verge of being able to answer this ancient question.
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