A monster black hole in the heart of a barred spiral galaxy called NGC 1097 has the mass of 140 million suns, according to new measurements. A vivid video by the National Radio Astronomy Observatory describes how researchers "weighed" the black hole.
A monster black hole in the heart of a barred spiral galaxy called NGC 1097 has the mass of 140 million suns, according to new measurements. A vivid video by the National Radio Astronomy Observatory describes how researchers "weighed" the black hole.
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