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YouTubeNASA
What Is an Exoplanet?
Exoplanets – planets outside our solar system – are everywhere. But why do we study them? What makes them so interesting? At NASA, we're surveying and studying exoplanets to learn all about their weirdness, their variety, and all the fascinating things they can tell us about how planets form and develop. Credit: NASA/JPL-Caltech
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