Stellar Metamorphosis: Butterfly-Shaped Nebulae Emerge from Stellar Cocoons

Top Credits: Sun Kwok and Kate Su (University of Calgary), Bruce Hrivnak (Valparaiso University), and NASA

Bottom Credits: Robert Rubin (NASA Ames Research Center), Reginald Dufour and Matt Browning (Rice University), Patrick Harrington (University of Maryland), and NASA