A supermassive black hole in a distant galaxy cluster has begun to awaken after almost 100 million years of dormancy. The study shows that object J1007+3540 behaves like a cosmic volcano, spewing ...
Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...
Astronomers have made an extraordinary discovery in the galaxyJ1007+3540, where a supermassive black hole has begun emitting ...