This simulation uses the Schwarzschild metric to illustrate the local time at points near a black hole in comparison to time measured farther away. Sinusoidal signals are also shown.

A simulated opportunity to test the Schwarzschild metric as objects orbit around a black hole.

Take a look at general relativity with this science simulation illustrating orbits of objects that are the result of an explosion near a black hole measured in Schwarzschild metric. Users are able to adjust the energy from the exploding...

When an explosion occurs in the equatorial plane of a revolving black hole objects are released. This simulation illustrates the orbits of those objects in Kerr metric.

A physics usenet listing of frequently asked questions relating to relativity, answered by a number of scientists. Administrivia and Reference, Speed of Light, Special Relativity, General Relativity and Cosmology, Black Holes. Loads of...

At this site from HubbleSite you can learn all about galaxies and black holes. Click on the movie link and discover how old the universe is or study about what happens when two galaxies collide!

A 1997 CNN report on the results of a repair mission to the Hubble Space Telescope. Video interviews with experts provide information on what the telescope has revealed about several celestial objects (Nebula and Black Holes).

Use this interactive diagram to investigate the conditions which produce black smoker and white smoker hydrothermal vents.

This resources focuses exclusively on astronomy. It's packed with historical facts about space exploration, famous people who pioneered the study of stars and planets. It features chronological list of space exploration, current news,...

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

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

From ABC News in Science, Heather Catchpole's article explores issues related to the collision of galaxies and the subsequent formation of black holes.

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...

This site has many articles from the first moments of life of the universe to its properties, current models, black holes, galaxies, etc.

Collapsed stars, between white dwarfs and black holes, can be studied as quark-gluon masses, or quark-hyperon groups. Extreme pressures lead to extreme states.

Site provides the article, "NASA Detects One Of Closest And Brightest Gamma Ray Bursts." Provides links to learn more about gamma rays and black holes as well as other resources.

An article about one of Russia's steel mills that has, like many other industries in Russia, fallen on hard times in the new free-market economy.

This webpage has two videos related to mid-oceaninc ridges. One of them examines the traits of hydrothermal vents and why their study is important. The other one describes the process by which new oceanic crust is created.

Brief biographical sketch of Stephen Hawking, famous scientist who researched space and black holes.

The BBC reveals what is known about wormholes, a possible consequence of Einstein's Theory of General Relativity in which space is bent, opening up the possibility of time travel.

The Milky Way is the edgewise view of our home galaxy, a disk made up of billions of stars. The Sun resides on one of the spiral arms of the disk, 30,000 light-years from the thick hub of the galaxy. The actual center, with a black hole...

NASA's Chandra X-ray Observatory site features a photograph and explanation of a "cool" black hole in the Andromeda Galaxy (M31).

When black holes collide:10

When black holes collide:10