Uploaded September 2013 | Updated September 2026, 3 days ago

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Two million years ago a supermassive black hole at the heart of our galaxy erupted in an explosion so immensely powerful that it lit up a cloud 200,000 light years away.

Source: Univ. of Sydney

Read more: laboratoryequipment.com/videos/2013/09/exploded-black-hole-confirms-they-flicker