First magnetar flare detected from another galaxy tracked to its home

a flare from a magnetar, illustrated

For the first time, astronomers have definitively spotted a flaring magnetar in another galaxy. These ultra-magnetic stellar corpses were thought to be responsible for some of the highest-energy explosions in the nearby universe. But until this burst, no one could prove it, astronomers reported January 13 at the virtual meeting of the American Astronomical Society […]