Click through a collection of astronomical images starring a variety of quasars.

Access the Astronomical Data Center's quick reference to quasars and active galaxies. Find spectroscopic, imaging and morphological data.

View a slide set produced for the Astronomical Society of the Pacific on quasistellar objects and other kindsof active galaxies.

Access the ninth edition of Veron-Cetty and Veron's catalog of quasars and active nuclei. Includes the introduction and references.

Virginia Tech physics professor Dr. John Simonetti offers an FAQ on quasars.

Introduction to active galaxies and quasars features diagrams, illustrations and EGRET images.

Describes quasi-stellar radio sources, found at the hearts of many galaxies, and briefly details the history of our understanding of them.

Learn more about this new quasar that, unlike its cousins, is not billions of light years away but a mere 600 million. Features telescope photos.

Academic paper describes and demonstrates the major software requirements of an investigation of quasar spectral energy distributions.

NASA's StarChild learning center for young astronomers features a description of quasars. Includes links to related terms.

Student guide to astronomy offers this fact-filled overview of quasars. Features a number of images and illustrative diagrams.

Check out a concise description of quasars and active galaxies. Includes Hubble Space Telescope images of quasar host galaxies.