Astronomers have detected a mid-infrared flare from the supermassive blackhole at the heart of the MilkyWay galaxy for the very first time, and it’s shedding new light on the complex physics ...
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 ...
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