Hubble Views Polar Ring Galaxy NGC 660

Hubble Views Galaxy NGC 660

This newly released Hubble image shows polar ring galaxy NGC 660, which is thought to harbor exceptionally large amounts of dark matter.

This new Hubble image shows a peculiar galaxy known as NGC 660, located around 45 million light-years away from us.

NGC 660 is classified as a “polar ring galaxy”, meaning that it has a belt of gas and stars around its center that it ripped from a near neighbor during a clash about one billion years ago. The first polar ring galaxy was observed in 1978 and only around a dozen more have been discovered since then, making them something of a cosmic rarity.

Unfortunately, NGC 660’s polar ring cannot be seen in this image, but has plenty of other features that make it of interest to astronomers – its central bulge is strangely off-kilter and, perhaps more intriguingly, it is thought to harbor exceptionally large amounts of dark matter. In addition, in late 2012 astronomers observed a massive outburst emanating from NGC 660 that was around ten times as bright as a supernova explosion. This burst was thought to be caused by a massive jet shooting out of the supermassive black hole at the center of the galaxy.

Credit: ESA/Hubble & NASA

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