Astronomers and geoscientists from the United States and Brazil have joined forces to study the mix of major rock-building elements in exoplanet-hosting stars, and to consider what this reveals about the exoplanets. An artist’s rendition of interior compositions of planets around Kepler-102 and Kepler-407. The picture shows what minerals are likely to occur several different depths. An exoplanet in orbit around Kepler-102 is Earth-like, dominated...
