A version of this article appears in print on Aug. 10, 2025, Section A, Page 8 of the New York edition with the headline: A Small European Nation With a Big Explosion Issue.

But while not as big as the “ big bang ” itself, experts quickly determined the gamma-ray burst (GRB) designated GRB 221009A was unquestionably the most powerful explosion ever observed by humans.

151,279 A Tour of the Biggest Explosion Ever Seen in the Universe The biggest explosion seen in the universe has been found. This record-breaking, gargantuan eruption came from a black hole in a ...

Astronomers have discovered the biggest explosion seen in the Universe in a galaxy cluster 390 million light years away. At the center of the Ophiuchus galaxy cluster, there is a supermassive black ...

Astronomers have re-examined the biggest explosion ever seen, possibly the most massive explosion since the Big Bang, to learn more about mysterious blasts of high-energy called gamma-ray bursts ...

From massive industrial blasts to military detonations, these explosions were so powerful they stunned experts—and the ...