NRAO -Thermal Imaging on Milliarcsecond Scales HL Tau ALMA B6 ,1“=14AU ALMA image of the young star HL Tau and its protoplanetary disk.This best image ever of planet formation reveals multiple rings and gaps that herald the presence of emerging planets as they sweep their orbits clear of dust and gas. 88 ALMA image of the young star HL Tau and its protoplanetary disk. This best image ever of planet formation reveals multiple rings and gaps that herald the presence of emerging planets as they sweep their orbits clear of dust and gas