Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon Telescope (EHT) Collaboration" according to the European Southern Observatory. The ...

Using observations from 2017 and 2018, the Event Horizon Telescope (EHT) Collaboration has advanced our understanding of the ...

Using observations from 2017 and 2018, the Event Horizon Telescope (EHT) Collaboration has advanced our understanding of the ...

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

Explore 5 real images captured by NASA, revealing the mysterious and captivating appearance of black holes, offering a ...

Supermassive black hole reactivates, emitting plasma jets New data sheds light on black hole’s unusual behavior since 2018 Potential white dwarf companion may explain black hole's activity ...

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...

The black hole at the center of the M87 galaxy is 1000 times more massive than Sagittarius A*. Watch views of both captured by the Event Horizon Telescope (EHT) Collaboration. Credit: Space.com | ...

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

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In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...