The Two Micron All Sky Survey at IPAC website provides an image gallery of the solar system's objects, Jupiter's moons, H II regions, star formation regions, and reflection nebulae, open star clusters, globular star...

The purpose of this website is to make a collection of web acessable original documents, reviews, and online links to articles on topics including cosmology, particle physicis, and extragalactic astronomy. This website...

This resource covers Seyfert galaxies, radio galaxies, BL Lacertae (BL Lac) objects, quasars, supermassive black holes, determining masses in galactic centers using the virial theorem, and a model for active galactic...

The Active Galaxies pop-up book is a very large rectangular pop-up book with foldouts that was developed for use in classrooms for grades 5 and up and for special needs audiences. Active galaxies, a major scientific...

This educational website provides animations of black holes, galaxies, and quasars. It uses either mpeg or quick time. Both of these formats are available in high and low resolution formats. There are links to podcasts,...