Euclid telescope finds 31 ancient quasars as bright as a trillion suns
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ESA’s Euclid space telescope, launched in 2023, has discovered 31 exceptionally old quasars, including two record-breaking examples as the earliest ever seen. Driven by supermassive black holes, they were already emitting light comparable to a trillion Suns when the universe was only 670 million years old, roughly 5% of its present age. The find refines how astronomers trace the first galaxies and black holes in the early cosmos.
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