quasars

Cultural

The most distant galaxies seen from the Earth, believed to be the first stage in the evolution of galaxies. The name is short for “quasi-stellar radio source.”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Scientists already knew that quasars can destroy this gas within their own galaxies, effectively shutting down local star formation.

From Science Daily • Mar. 30, 2026

Looking ahead, the team plans to study additional quasars to determine whether this phenomenon is widespread.

From Science Daily • Mar. 30, 2026

Astronomers noticed that regions around some of the brightest quasars in the early universe appeared to contain fewer galaxies than anticipated.

From Science Daily • Mar. 30, 2026

Astronomers have nicknamed the cluster of quasars Cosmic Himalayas.

From Space Scoop • Jul. 4, 2025

It is thought that similar but even larger black holes, with masses of about a hundred million times the mass of the sun, occur at the centers of quasars.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023