This quasar may have helped turn the lights on for the universe

Astronomers have discovered a highly luminous, variable quasar from the early universe using the NuSTAR X-ray space telescope. J1429+5447, likely a supermassive black hole with an Earth-directed jet, shows extreme X-ray variability. Its emissions doubled in two weeks (quasar time), suggesting a relativistic jet. This finding may explain rapid growth of early universe objects and offer insights into the reionization period, which happened less than a billion years after the Big Bang.