Researchers from the Centred 'etude Spatiale des Rayonnements in France detected the middling hole in a galaxy about 290 million light-years from Earth.
法国空间辐射研究中心的研究人员们从一个星系中发现了这个大约离地球2.9亿光年的中型黑洞。
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Dr Nabila Aghanim, of the Institut d'Astrophysique Spatiale in Orsay, France, said: 'These observations will be used as bricks to build our understanding of the Universe.'