A whopping 20 new scientific papers use data gathered by a host of radio dishes perched high in the Chilean desert to tease apart the mysteries of how planets form. The Atacama Large Millimeter/submillimeter Array (ALMA) specializes in studying what scientists call protoplanetary disks, the mess of material that surrounds young stars and eventually gloms together to build planets. While scientists do plenty of work analyzing already-formed exoplanets, studying protoplanetary disks as well offers an opportunity to see all those ingredients mixed up and spread out...