A giant ring of black holes were recently discovered about 430 million light years from Earth
X-ray: NASA / CXC / MIT; Optical: NASA / STSc
It's known as Arp 147 — object number 147 in astrophysicist Halton Arp's Atlas of Peculiar Galaxies. For years, astronomers have known that it's really two galaxies that smashed through each other millions of years ago
It's known as Arp 147 — object number 147 in astrophysicist Halton Arp's Atlas of Peculiar Galaxies. For years, astronomers have known that it's really two galaxies that smashed through each other millions of years ago
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