Euclid spots the oldest known quasars

Astronomers searching the deep sky with the European Space Agency’s (ESA) Euclid space telescope have turned up the oldest quasars ever recorded — bright galactic cores that came to life when the universe was only 670 million years old. Euclid identified 31 new quasars dating to the universe’s first billion years, including two record-setters whoseContinue reading “Euclid spots the oldest known quasars”

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