A list of answers to many questions related to quasars and active galaxies.

NASA presents the amount of energy, type of energy, brightness, and the detection of quasars. Provides several examples, pictures, and information.

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.

Describes quasars as being classified within the category of an active galaxy. A description of the emergence of high-energy. Definitions of key words are provided.gamma-ray quasars as an important component of the gamma-ray sky.

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.

This site from Virginia Tech provides answers to a list of questions about quasars.

Learn why quasars are the brightest things in the universe. Vocabulary words linked to a glossary of terms and a printable version are available.

This site provides information about quasars and active galaxies. Includes a glossary of important terms.

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.

Provides basic information related to quasars.

PBS offers a brief history of the discovery of quasars and the people involved.

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.

In this module you can learn about the active galaxies, quasars and the effect of the gravitational lens.

Under the heading, "Black Hole Spills Kaleidoscope of Color" this site examines specific details of an image displaying the "supermassive black hole called a quasar."

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.

In this site you will find several Astronomy topics such as: the expansion of the Universe, history of Astronomy in Mexico, quasars in the confine of the Universe and telescopes and stars.Read phonetically

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.

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...

In this interactive tutorial students will explore galaxies. Learn what the Milky Way Galaxy is like, how various galaxies are grouped into clusters and superclusters and why those particular galaxies clump together.

Younger students learn why comets race through the sky as well as related vocabulary words and meanings.

This site examines the black hole as an object in astrophysics. Delve into this comprehensive resource that covers this concept from its history, to qualitative physics, the reality of black holes, mathematical physics and more.

Contains a full physics curriculum with links to games, webcasts, and activities. By creating a free account, students and teachers can create their own personal collection of resources.

This lesson will describe how scientists classify galaxies.