Using the HARPS-N spectrograph on the Italian Telescopio Nazionale Galileo at the Roque de los Muchachos Observatory (Canary Islands), astronomers have discovered three super-Earths and a gas giant orbiting a nearby star called HD 219134. This artist’s impression shows the super-Earth exoplanet HD 219134b. Image credit: NASA / JPL-Caltech. HD 219134, also known as HR 8832, is a 5th magnitude K-dwarf star located approximately 21 light-years away...