The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

A large international team of scientists has observed a phenomenon that astronomers didn't ever expect to see happen in real ...

A large international team of scientists observed a rare event in real time: a dramatic increase in radio emission and the ...

Since 2018, we've seen 1ES 1927+654 generate jets in real time and found it may have a lone white dwarf orbiting near the ...