Astronomers were puzzled by a black hole around 50 million times the mass of the sun with no stars, spotted by the James Webb ...
An international team of astronomers, led by SRON, has observed a sudden outburst of matter near the supermassive black hole NGC 3783 at speeds reaching up to 20% of the speed of light. During a ...
Black holes are not cosmic vacuum cleaners. They are among the universe’s most extreme objects - and come in different sizes.
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