High-school student accidentally discovers black hole 'light echo' twice as wide as the Milky Way
While sifting out signatures of supernova remnants, a high-schooler stumbled upon the afterglow of a dormant black hole. It may be one of the largest ever seen.
While sifting out signatures of supernova remnants, a high-schooler stumbled upon the afterglow of a dormant black hole. It may be one of the largest ever seen.
