The detection of pristine circumstellar material in supernova remnant Cas A reveals exciting new details about its stellar progenitor.
New scattered-light images reveal striking substructure in circumstellar disks around nearby low-mass stars.
ALMA observations of SN 1987A shed new light on dust production in young supernovae.
An explosive stellar merger reveals the first radioactive molecule discovered in space.
SOFIA observations have detected HeH+ in the planetary nebula NGC 7027, shedding new light on the dawn of chemistry in the universe.