Quasar

Clues from Quasars in the Early Universe - AAS Nova

Quasar Lenses

Quasar - Wikipedia

Hubble Telescope Finds Double Quasar in Early Universe - Mellon College of Science - Carnegie Mellon University

Hubble Catches Runaway Quasar

Largest recorded quasar outflow could be key to answering galaxy-sized questions, Virginia Tech News

Quasar PG 0052+251

Galactic Beacons Get Snuffed Out in a Cosmic Eyeblink

Hubble Unexpectedly Finds Double Quasar in Distant Universe - NASA Science

Astronomers Find Brightest Quasar of Early Universe, Astronomy

The Most Distant Quasar

Quasar, Discovery, Structure & Evolution

What exactly are blazars and quasars? How are they different?

Astronomers Find Monster Quasar in Early Universe, Astronomy

Quasar Variability Project