Largest observed flare from a black hole unleashes the light of 10 trillion suns

By Ashley Strickland, CNN (CNN) — Astronomers have spotted the largest and most distant flare ever observed from a supermassive black hole. Nicknamed “Superman,” the flare originated 10 billion light-years from Earth, and at its peak, the light emitted shone with the brightness of 10 trillion suns. The source of the flare is an active