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What spawned the Jellyfish Nebula?

11 December 2015 Astronomy Now

The Jellyfish Nebula, also known by its official name IC 443, is the remnant of a supernova lying 5,000 light-years from Earth. New observations from NASA’s Chandra X-ray Observatory show that the explosion that created the Jellyfish Nebula may have also formed a peculiar object located on the southern edge of the remnant.