NuSTAR Views Colliding Galaxies, Arp 299

This newly released image from NASA’s Nuclear Spectroscopic Telescope Array shows two colliding galaxies, collectively called Arp 299, located 134 million light-years away. Each of the galaxies has a supermassive black hole at its heart. NuSTAR has revealed that the black hole located at the right of the pair is actively gorging on gas, while […]
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