Astronomers have imaged planetesimal belts in 74 planetary systems as part of the REsolved ALMA and SMA Observations of Nearby Stars (REASONS) survey. This gallery contains 74 images of different star systems with exocometary belts taken with the Submillimeter Array (SMA) and the Atacama Large Millimeter/submillimeter (ALMA) radio telescope facilities. Image credit: Luca Matrà. To find evidence for comets outside our Solar System, astronomers turned...