The Butterfly Nebula is a bipolar planetary nebula located approximately 3,400 light-years away in the constellation Scorpius. Named for its resemblance to a butterfly, the nebula has a wingspan that stretches three light-years across. It is sometimes also called the Bug Nebula. The nebula has the designation NGC 6302 in the New General Catalogue and … Continue reading Butterfly Nebula (NGC 6302)