Blog Post Image: “Assassin” Targets Supernovae in Our Neighborhood of the Universe

(Full Size) Left, a Sloan Digital Sky Survey archival image of a galaxy some 400 million light years away, in which ASAS-SN detected a bright supernova on Jan. 3, 2015; Right, an image submitted by ASAS-SN amateur contributor Seiichiro Kiyota of the Variable Star Observers League in Japan, which confirmed the existence of the supernova. ASAS-SN image courtesy of The Ohio State University.