Astronomers have noticed the consequences of the most powerful energy surge in the universe since the Big Bang.
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According to the International Center for Radio Astronomy Research, traces from an explosion of some unknown nature were recorded in the supercluster of Ophiuchus, which is 390 million light-years from the Earth.

Actually, in fact, the traces of this explosion were first recorded back in 2016, but then the assumption of an explosion caused a lot of doubts. It took the scientists several years to double-check everything and finally confirm it.
The explosion occurred in the vicinity of a supermassive black hole, in one of the cluster galaxies. As a result of the explosion, the substance turned out to be scattered in a huge area of space several times larger than our galaxy in volume.
The energy emission, in this case, is 5 times higher than the previous known record. At the moment, there is no accurate data on the reason for such a large-scale energy release. One of the most plausible assumptions is that a supermassive black hole threw several streams of extremely powerful jets in different directions.

Having collided with the substance, those jets carried it to the side, cutting out a giant cavity (dashed curve in the image), but this hypothesis still needs to be verified.