NASA detects rare 'double quasar' in ancient corner of the universe
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Astronomers just detected two pairs of rare 'double quasars' about 10 billion light-years away. They are the oldest in the known universe.NASA detects rare 'double quasar' in ancient corner of the universe
Astronomers just detected two pairs of rare 'double quasars' about 10 billion light-years away. They are the oldest in the known universe. Read more