[ExI] The biggest bang since the big one

[John Clark]

In the February 27 2020 Astrophysical Journal evidence is presented that in
the distant past in a super giant galaxy 400 million light years away there
was an explosion that released 100 billion times as much energy as the sun
will during its entire lifetime.

Discovery of a Giant Radio Fossil in the Ophiuchus Galaxy Cluster
<https://iopscience.iop.org/article/10.3847/1538-4357/ab6a9d>

John K Clark
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