English: This composite X-ray (blue)/radio (pink) image of the galaxy cluster Abell 400 shows radio jets immersed in a vast cloud of multimillion degree X-ray emitting gas that pervades the cluster. The jets emanate from the vicinity of two supermassive black holes (bright spots in the image). These black holes are in the dumbbell galaxy NGC 1128, which has produced the giant radio source, 3C 75.
Русский: Активная галактика 3C75 в рентгеновских лучах (синий) и радио (розовый). Два ярких источника в центре являются двумя сверхмассивными черными дырами, которые обращаются вокруг общего центра масс и которые питают мощный радиоисточник 3C75.
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