Recent surprising discoveries have led Hubble space telescope astronomers to rethink theories on a class of galaxies called ultra-luminous infrared galaxies (ULIRG). It was previously believed that only pairs of galaxies were interacting in ULIRGs, but recent photos from Hubble show multiple collisions of four or even five galaxies smashing together. The images, provided at this site, offer a...

What goes on in outer space? This is a fascinating question and an ongoing line of human inquiry. The Astrophysics Science Division of NASA conducts a broad program of research in astronomy, astrophysics and fundamental physics, and this site provides access to information on the Division's projects, publications, and research agenda. Visitors can dive right in by looking over the Press Releases &...

Part of the Astrophysics Data Facility of the Space Science Data Operations Office at NASA, the Astronomical Data Center provides astronomical catalogs and journal tables to the scientific community. The site includes nine data categories: Astrometric and Positional, Photometric, Spectroscopic, Cross Identifications, Combined and Derived, Miscellaneous, Nonstellar and Extended Objects, Radio...

Created in 1890, the Smithsonian Astrophysical Observatory has a rich history of space science research. Affiliated with Harvard University, the SAO moved from Washington, DC to Cambridge, MA in 1955. Today, the Observatory employs over 300 scientists working on broad programs of astrophysical research supported by federal appropriations and other funding sources. Its divisions include high energy...

From NASA's Office of Space Science, this metapage lists a wide variety of missions that are either under study, in development, currently in operation, or completed (those that ended after 1989). Users may access names of missions, brief descriptions, and links to missions by clicking on the category heading. Also available here are a few links to multi-mission programs, ground-based astronomy,...

[email protected], contains the latest information and news releases from NASA missions. Visitors can also find out information about NASA's four strategic enterprises: Aeronautics, Human Exploration and Development of Space, Mission to Planet Earth, and Space Science. NASA related sites describe current happenings at NASA and also provide homepages of NASA missions including the Cassini space probe,...

In other space and planetary news, researchers have found signs of a Jupiter-sized planet near one of the Big Dipper's stars. To learn more, check out the University of California Planet Search program's press release that contains astronomical data, a sky chart, and links.