An image of a quasar. The large redshifts imply that quasars lie near the edge of the observable universe and must emit tremendous amounts of energy. There are also many embedded links to related topics.

An image of a typical quasar and a star. An explanation written by a professional astronomer is included. There are also many embedded links within the text to related topics.

A photograph and description of quasar 3C279 viewed in gamma-rays. It was unexpectedly discovered and was one of the brightest objects in the gamma-ray sky until it suddenly faded.

Provides basic information related to quasars.

This site from the SkyServer offers information as to what quasars are as well as provides links to strange objects, radio astronomy and research. This is a great sit to check out the brief but factual information on the subject.

The Gorilla Black Hole in the Mist image features a distant galaxy with a quasar and a super-massive black hole. In addition, a detailed textual overview explains various specifics of the picture.

This astronomical survey by the Sloan Digital Sky Survey is poised to be one of the most ambitious ever undertaken. When completed, it will provide detailed images covering more than a quarter of the sky, and almost a million galaxies...

This lesson will describe how scientists classify galaxies.

In this site, from the SkyServer of the Sloan Digital Sky Survey users hunt for stars, galaxies, quasars, asteroids and meteors. Learn what they look like and how to find them.