GOTO discovers the first gravitationally lensed Type I superluminous supernova
Einstein’s General theory of Relativity predicted that massive galaxies could act as a gravitational lens for objects directly `behind’ it. Depending on its exact orientation, multiple images could be seen around an arc centered on the foreground galaxy. In 1964, Sjur Refsdal suggested that supernovae could be lensed by a foreground galaxy and might be…