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Supernova RCW 86

A composite image of supernova remnant, RCW 86. X-rays are shown in blue and green, infrared light in yellow and red. The image shows the remains of a supernova that Chinese astronomers saw in 185 A.D. Located 8000 light-years away in the constellation Circinus, explosion was the result of a white dwarf detonating after a companion star dumped too much material on to it. The x-ray bubble is now 85 light-years in diameter. X-ray credit: NASA/CXC/SAO & ESA; Infrared credit: NASA/JPL-Caltech/B. Williams (NCSU)

Supernova RCW 86

Supernova RCW 86

Christopher Crockett

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