

The Search for Exoplanets: What Astronomers Know
Super-Earths or Mini-Neptunes?
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S1 • E10 Sep 23, 2015 30mLearn how a sensitive new instrument led the way in finding planets smaller than the Jupiter-sized giants that dominated the earliest exoplanetary discoveries. Halfway in size between Earth and Neptune, these worlds have uncertain properties. For clues about their nature, consider how our solar system formed.