Around 3.5 million years ago, a gigantic energy flare punched out from the center of our galaxy, the Milky Way. The radiation it released erupted in two energized cones that were so powerful, the impact was felt 200,000 light-years away.
The flare, called a Seyfert flare, started out small near the center of the galaxy that's dominated by a supermassive black hole. As the cones formed and flashed their way through the galaxy, they expanded.The flare was felt in the Magellanic Stream 200,000 light-years away, a trail of gas from nearby dwarf galaxies like the Large and Small Magellanic Clouds. What could trigger such a huge explosion? Researchers believe it was nuclear activity connected to the black hole.
This violent galaxy next door is set for a collision with the Milky WayThe explosion lasted for about 300,000 years."This is a dramatic event that happened a few million years ago in the Milky Way's history," said Lisa Kewley, study co-author and director of ASTRO 3D."A massive blast of energy and radiation came right out of the galactic center and into the surrounding material.
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