Black Hole Feasts, AI for Teens & Climate Alarms: Science News Roundup (Sept 18–19, 2025)
Space & Astronomy Record-Breaking Black Hole Growth Astronomers have identified a “black hole on overdrive” in the early universe, feeding faster than theory predicted. The supermassive black hole — about a billion solar masses and observed 12.8 billion light-years away — is devouring matter at 2.4 times the Eddington limit (the usual maximum rate) nasa.gov nasa.gov. This quasar’s extreme X-ray output makes it the brightest black hole of the universe’s first billion years nasa.gov. Its existence helps explain how giant black holes grew so quickly after the Big Bang. The lead researcher, Luca Ighina of the Center for Astrophysics, was