The supernova remnant in question is MC SNR J0519–6902, first discovered in 1981. This wreckage has a ring-like structure that is around 26 light-years in diameter — that's wide enough to fit ...

to explore supernova wreckage in the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way. The supernova remnant in question is MC SNR J0519–6902, first discovered in 1981.