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Cosmología

Euclid discovers the most ancient quasars in the universe, rewriting early cosmic history

ESA's Euclid telescope has found 31 ancient quasars, including two record-breakers at redshift 7.77 and 7.69, seen when the universe was just 670 million years old. The discovery more than doubles the known population of quasars from the cosmic dawn.

SKYCR Web Team
By SKYCR Web Team
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This artist's impression shows a quasar: a brief period of life for a big, bright galaxy during which large quantities of material spiral into its central supermassive black hole, releasing energetic light as it does so. Quasars are the most luminous objects in the cosmos, shining hundreds to thousands of times more brightly than entire galaxies. Credit: ESA

ESA's Euclid telescope has found 31 ancient quasars, including two record-breakers at redshift 7.77 and 7.69, seen when the universe was just 670 million years old. The discovery more than doubles the known population of quasars from the cosmic dawn.

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