A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope. The quasars were powered by a pair of supermassive black holes on a ...
The Hubble Space Telescope captures stunning imagery of barred spiral galaxy UGC 678. The galaxy is located about 260 million light-years away from Earth in the Pisces constellation. Credit: Space.com ...
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