Many stars end their lives in one last supernova blaze of glory, but until now we didn't know just how bright and powerful the cosmic death spasms can be. Scientists have spotted a supernova more than twice as bright as any other stellar explosion.
A team from Harvard University, Northwestern University, Ohio University and the UK's University of Birmingham believe that the supernova labeled SN2016aps could be two massive stars that merged before exploding.
