quasars

Astronomers discovered 31 of the oldest known quasars, including the two earliest detected, from a time when the universe was approximately 670 million years old. These quasars, powered by supermassive black holes, challenge existing theories about the rapid formation of such massive black holes after the Big Bang.

A telescope has discovered the most distant quasars ever identified. These quasars are powered by supermassive black holes located at the centers of early galaxies.

The European space telescope Euclid has discovered the oldest quasars yet, which act as time machines by emitting light from the universe's beginnings, allowing astronomers to study the formation of early galaxies.

The James Webb Space Telescope revealed extremely fast galaxy-scale outflows from quasars about one billion years after the Big Bang. These outflows were more frequent and powerful than at later cosmic epochs. They could escape their host galaxies and regulate early massive galaxy evolution.

James Webb Space Telescope observations reveal powerful outflows in luminous early quasars, supporting quasar feedback as a mechanism driving star-formation quenching in early massive galaxies. These outflows are frequent among luminous early quasars. The findings were published in Nature on May 6, 2026.

Scientists have completed the largest high-resolution 3D map of the universe using data from 47 million galaxies and quasars, potentially revealing new insights into dark energy. The DESI collaboration overcame challenges like wildfire disruptions to create this dataset, which suggests dark energy may behave unexpectedly.