NGC 1316: After Galaxies Collide

Originally from 09 / 02 / 08
Credit & Copyright: Martin Pugh

Explanation: Astronomers turn detectives when trying to figure out the cause of startling sights like NGC 1316. Their investigation indicates that NGC 1316 is an enormous that started, about 100 million years ago, to devour a smaller NGC 1317, just above it. Supporting evidence includes the dark characteristic of a spiral galaxy, and faint swirls of stars and gas visible in this wide and deep image. What remains unexplained are the unusually small seen as faint dots on the image. Most elliptical galaxies have more and brighter globular clusters than NGC 1316. Yet the observed created by the recent hypothesis is that these globulars survive from an even earlier galaxy that was subsumed into NGC 1316.


NGC 1316: After Galaxies Collide

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