quasars

Astronomers using the James Webb Space Telescope have separated the light of a quasar from the light of its surrounding stars, offering unprecedented insight into how the universe's oldest black holes grew.

Scientists think that by studying a cluster of "baby quasars," they can get a better understanding of supermassive black holes in the early universe.

Observations made by Chile's ALMA telescope have revealed a gigantic quasar quenching a galaxy's star formation — a first-of-its-kind observation in the early universe.

The newly identified quasar, observed 13.7 billion light-years away by the James Webb Space Telescope and Chandra X-ray Observatory, could be an example of a heavy black hole "seed" in the early universe.

The European Space Agency's Gaia telescope revealed half a million newfound stars, and detailed the orbits of over 150,000 asteroids.

Studying the mysterious form of matter around ancient quasar galaxies could have profound implications for our understanding of how the cosmos evolved.

The observation that the universe appears to run slower in the past was made by scrutinizing the light emitted by gigantic quasars.

Quasars, the most extreme phenomena in the universe, are triggered when galactic collisions deliver gas to feeding black holes, new research suggests.

Researchers may be a step closer to identifying dark matter after studying unusual cases of gravitational lensing caused by "dark matter halos" surrounding distant galaxies.

What's the biggest black hole in the universe, and is there a limit to how big black holes can get?