If ‘stupendously large’ black holes, those with masses more than 100 billion times that of the Sun, exist in the Universe, they would provide a powerful tool for cosmological tests due to their unique imprints, according to a paper published in the Monthly Notices of the Royal Astronomical Society. Carr et al. investigated how stupendously large black holes could form and potential limits to their size. Image credit: NASA’s Goddard Space Flight...
