SNR 0104-72.3: A supernova remnant located in the Small
Magellanic Cloud, about 190,000 light years from Earth. Caption:
A new composite image from NASA's Chandra X-ray Observatory
(purple) and Spitzer Space Telescope (red and green) shows a
supernova remnant with a different look. This object, known as
SNR 0104-72.3 is in the Small Magellanic Cloud, a small
neighboring galaxy to the Milky Way. Astronomers think that this
object is the remains of a so-called Type Ia supernova caused by
the thermonuclear explosion of a white dwarf, but it has a shape
unlike any other in its class. Scale: Full field image is 32.4
arcmin across. Chandra X-ray Observatory