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E0102-72.3: A supernova remnant in the Small Magellanic Cloud.
(Credit: NASA/CXC/SAO)

Caption: E0102-72 is a supernova remnant in the Small Magellanic Cloud, a satellite galaxy of the Milky Way. Located in the constellation Tucana, this galaxy is 190,000 light years from Earth. The remnant is approximately a thousand years old. Stretching across forty light years of space, the expanding multimillion degree shell of gas resembles a flaming cosmic wheel.

Scale: Image is 1 arcmin on a side.

Chandra X-ray Observatory ACIS Image

CXC operated for NASA by the Smithsonian Astrophysical Observatory