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LiveScience
LiveScience
Olivia Maule

Euclid telescope discovers the 2 most ancient monster black holes in the universe ‪—‬ each brighter than a trillion suns

Euclid Universe Black Hole James Webb Quasar
Orange disk amid black sky with stars.

The European Space Agency's (ESA) Euclid space telescope has spotted 31 previously unknown quasars dating to the universe's earliest chapter, including the two oldest ever found.

The discoveries, described July 6 in the journal Astronomy & Astrophysics, more than double the number of known quasars from that primordial era and could help astronomers unravel one of cosmology's biggest mysteries: how supermassive black holes grew so enormous so quickly after the Big Bang.

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