Massive explosion rocked center of Milky Way 3.5 million years ago
A gigantic explosion in the heart of the Milky Way. This has been detected by an Australian-American team from the Australian ASTRO 3D Center, which details this new discovery in The Astrophysical Journal, relayed by the BBC. The event would have occurred 3.5 million years ago, an eternity for our perception and yet a recent upheaval on the scale of the galaxy. A gigantic energy beam would have crossed the Milky Way and touched its galaxies annexes. According to the researchers, this violent explosion was even felt 200,000 light-years away.
If the origin of the explosion is not fully confirmed, astrophysicists think that it is certainly related to the nuclear activity related to the presence of Sagittarius A *, a black hole 4 million times more massive than our Sun. and located in the heart of the Milky Way. The team said that this explosion had consequences for two dwarf galaxies near the Milky Way, changing the physical parameters of the Small Magellanic Cloud and the Large Magellanic Cloud.
In any case, the discovery of this dynamism of the Milky Way could lead to a reinterpretation of its history and evolution. “We have always seen our galaxy as an inactive galaxy with a dim light (…) These results radically change our understanding of the Milky Way,” said Magda Gugliemo, co-author of the publication and a researcher at Sidney University.