Ancient quasar reveals rapid black hole growth in the universe’s infancy

Astronomers using ESA’s Euclid telescope identified 31 quasars dating to about 670 million years after the Big Bang, including the oldest quasar yet observed that shines with the light of roughly a trillion suns, helping explain how supermassive black holes grew so quickly and shedding light on the epoch of reionization; the findings, published in Astronomy & Astrophysics, come from Euclid’s Wide Survey which will map a large portion of the sky.