Caltech’s Katie Bouman explains how the Event Horizon Telescope Collaboration captured the first imager of the Sagittarius A* ...
Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...
Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...
The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.
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 ...
Astronomers have captured the most detailed infrared images yet of an active galactic nucleus (AGN), using the Large ...
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 ...
According to scientists, there could be more black holes in the universe than previously thought. Researchers reckon ...
The Andromeda Galaxy, our nearest galactic neighbor, is a majestic spiral galaxy like the Milky Way. Let’s uncover some ...
About 13 billion light-years away there is a supermassive black hole actively sending out a spectacular beam of energy directly towards Earth. Interestingly, this isn't just any black hole; it's a ' ...
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