What have we learned about the universe over the past four centuries? Visions of the Universe asks just that, looking deep into the past to bring a bit of this history to the general public. On the site, visitors can make their way through twelve exhibits, including Storms on the Sun and Journey To Mars. Each section features a detailed poster for classroom use, along with other activities and...

David Malin, Adjunct Professor of Scientific Photography at Royal Melbourne Institute of Technology (RMIT), has created this "gateway to a unique collection of wide-field astronomical photographs." These awe-striking photographs were mostly taken with the telescopes of the Anglo-Australian Observatory and include photos of galaxies, emission and reflection nebulae, supernovae, star clusters,...

This website presents the news, events, and research of one of the UK and Ireland's leading astronomical research institutes, Armagh Observatory. Users can learn about the Observatory's many research projects in topics including stellar astrophysics, solar physics, and climate and meteorology. The site presents the long history of the observatory and its instruments. Educators can discover the...

Each day a new, beautiful image or picture of our intriguing atmosphere is presented on this Web site, created by NASA, along with a short description written by an expert. By selecting Discover the Cosmos, viewers can visit the archives, which features all the images presented since June 1995. In the Index, the images are also organized into the topics: Cosmos, Solar System, Space Technology, and...

The Brooks Astronomical Observatory, located at Central Michigan University, was built for research and public use. The website presents the history of the Observatory and its technological capabilities. Users can find a long list of scientific publications based on research performed at the observatory. The numerous astronomical topics researched include asteroids, stellar clusters, occultations,...

"Challenger Center uses students' natural enthusiasm for space to create innovative learning experiences for imaginative young minds." After learning about the Challenger 51-L crew, users can find information about visits to the Challenger Learning Center Networks' forty six sites located across the Unites States, Canada, and the United Kingdom. Within the Teacher and Community Resources link,...

Since its launch on July 23, 1999, the Chandra X-Ray Observatory has been NASA's flagship mission for exciting and new X-ray astronomy projects. The project is overseen by the Harvard-Smithsonian Center for Astrophysics, and visitors can start by clicking on the "About" area to learn about Chandra's mission, and also learn about the man behind the Observatory's name, Nobel-Prize winning physicist...

The Lunar and Planetary Institute (LPI) has created a digital version of the Lunar Orbiter Photographic Atlas of the Moon, published in 1971 and considered "the definitive reference manual to the global photographic coverage of the Moon." The site includes all 675 plates contained in the original work, digitally enhanced to increase photo quality. Visitors can view images by feature name, listed...

This site displays the first-ever images of a large, double asteroid once assumed to be a single asteroid called Antiope. The images were recently released by the Southwest Research Institute (SWRI). Each asteroid in the pair is approximately 50 miles across, separated by about 100 miles. This discovery was made using the W.M. Keck Observatory, Mauna Kea, Hawaii. Images of another discovery, that...

The Extrasolar Visions Web site provides a searchable guide to extra solar planets. These include planets of normal stars, pulsar planets, brown dwarfs, protoplanetary disks and protoplanets, extragalactic worlds, massive compact halo objects, and disproven or doubtful worlds. Visitors can search for these objects or view the week's 20 most popular systems, 20 most interesting systems, or the 20...