Kavli Affiliate: Laura Schaefer | First 5 Authors: Edwin S. Kite, Bruce Fegley Jr., Laura Schaefer, Eric Ford, | Summary: Planets with 2 $R_{oplus}$ < $R$ < 3 $R_{oplus}$ and orbital period $<$100 d are abundant; these sub-Neptune exoplanets are not well understood. For example, $Kepler$ sub-Neptunes are likely to have deep magma oceans in […]