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Credit: ESA / Hubble and NASA, A. Riess et al.
In the night forests is a barred spiral galaxy called NGC 3583, photographed here by the POT/ THAT hubble space telescope. This is a barred spiral galaxy with two arms that rotate towards the Universe. This galaxy is 98 million light years away from the Milky Way. Two supernovae exploded in this galaxy, one in 1975 and the other, more recently, in 2015.
There are a few different ways that a supernova can form. In the case of these two supernovae, the explosions evolved from two independent binary star systems in which the stellar remnant of a Sun-like star, known as white dwarf, was collecting material from its companion star. Feeding on its mate, the white dwarf gorged itself on the material until it reached maximum mass. At this point, the star collapsed inward before exploding outward in a brilliant supernova.
Two of these events were seen in NGC 3583, and while they are not visible in this image of the week, we can still marvel at the fearsome symmetry of the galaxy.
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