Posts Tagged ‘quasars’

Double Quasars Reveal Galactic Collision in Ancient Universe

The Hubble Space Telescope (HST) has spotted rare “double quasars” in the distant universe, implying a catastrophic galactic collision in ancient times. Peering back 10 billion years into the universe’s history, astronomers found a pair of quasars that appear to be a single object. But with the crisp view provided by the HST, the pair […]

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