The explosion happened one billion light years away, which is incredibly close to the Earth by cosmic standards.
A phenomenal cosmic explosion of gamma radiation from a collapsing star has been captured by scientists in Nambia. The gamma-ray burst (GRB) was captured by the High Energy Stereoscopic System on 29 August 2019, after the Fermi and Swift satellites detected a burst of radiation in the constellation of Eridanus.
For more, check out this Independent (UK) story.