A star has been destroyed by a wandering supermassive black hole

Back in 2024, a system set up to identify objects that suddenly brighten found something unusual. Unfortunately, the automated system that was supposed to identify it couldn't figure out what it was looking at. Now, about a year later, we know it's the first tidal disruption event—meaning a star being ripped apart by a supermassive black hole—identified at visual wavelengths. It's also a rather unusual one, in that the supermassive black hole in question does not reside at the center of its galaxy. Instead, there's an even more massive object there, which is feeding on matter at the same time. A mystery object The object, now called AT2024tvd, was identified by the Zwicky Transient Facility, which is set up to scan the entire northern sky over a period of just two days, after which it repeats the process. Combined with software that scans the data for changes, these repeated exposures allow the system to identify objects that suddenly brighten (or, potentially, anything that suddenly ... Read full article.