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

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.

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.

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.

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.

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.

StarChild from NASA defines and describes the Solar System in a simple and easy-to-understand manner. The website is broken down into two versions for the student, grade school and junior high.

This site from Hubblesite has a very long list of Hubble Space Telescope Images listed by subject. General categories of subjects include Solar System, Stars, Nebulae, Star Clusters, Novae, Supernovae, Stellar evolutionn, Galaxies, and...

The universe produces a broad range of light, only a fraction of which is visible to our eyes. Gamma rays are nonvisible light, which also includes x-rays, ultraviolet light, infrared radiation, and radio waves.

Contains an introduction to x-ray astronomy, describing how x-rays are being used by scientists to learn about the universe. Also contains links to sites describing black holes, dark matter, neutron stars, and how they are investigated...

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.