Astronomers have recently made a remarkable discovery in the depths of space: a supernova remnant with an incredibly rare set of properties. Named 1E 0102.2-7219, this supernova remnant is located in the Small Magellanic Cloud, a satellite galaxy of the Milky Way. What makes this supernova remnant so unique is that it consists of two distinct components: a central core, and an outer shell. The outer shell is made up of a mixture of oxygen, neon, magnesium, and silicon, while the core is composed of almost entirely oxygen, with a few traces of magnesium and silicon. In addition, the core is expanding at an incredibly high rate, with an estimated velocity of 8,000 km/s. This makes it one of the fastest moving supernova remnants ever observed. This discovery has opened up a whole new realm of possibilities in our understanding of how supernovae and supernova remnants form and evolve.

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source: Phys.org