Researchers say the blast is the biggest since the Big Bang. It occurred
at the center of a galaxy cluster 390 million light years away.
Read more at:
https://www.dw.com/en/astronomers-detect-biggest-explosion-in-history-of-the-universe/a-52564205
Read more at:
https://www.dw.com/en/astronomers-detect-biggest-explosion-in-history-of-the-universe/a-52564205