Albert Einstein Planetarium - Internet sites that provide information on  skywatching, astronomy and space science topics.

American Astronomical Society - Current information about the world of astronomy and a major organization within the field.

Association of Universities for Research in Astronomy, Inc. - A consortium of universities, and educational and other non-profit institutions, that operates world-class astronomical observatories. Explore links to each university's or institution's astronomy site.

Astronomy Education Resources - Links to workshops, resource materials and is maintained by the University of Hawaii.

Astronomy Picture of the Day - Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

AstroWeb: Astronomy/Astrophysics on the Internet - Produced by the AstroWeb Consortium; URLs to links at this site are validated daily.

Catalog of Infrared Observations - Database of over 325,000 published infrared observations of more than 55,000 individual astronomical sources over the wavelength range from 1 to 1000 microns.

Extrasolar Planets Encyclopaedia - Compiled by Jean Schneider, Observatoire de Paris; has both English and French versions of explanations about planets and related material.

Helen Sawyer Hogg - Site named for former professor of astronomy; site has links to other Women in Astronomy Resources.

Hubble Heritage Project - The Hubble Heritage Project includes an information center, astronomy resources, images, and biographies of the team.  

NASA - Explore America's space program with extensive links to all types of astronomical projects and data.

NASA/IPAC Extragalactic Database - Data and references for extragalactic
objects.

NOVAC - From the Northern Virginia Astronomy Club. Links to Star Clusters, Planetary Nebula, Meteors, and much more.

Planetary Data System - Digital data from NASA planetary missions, astronomical observations and laboratory measurements.

Resources in Astronomy - From the University of Minnesota Science and Engineering Library an extensive list of links.

SIMBAD Astronomical Database (Set of Identifications, Measurements, and Bibliography for Astronomical Data) - Data and references for galactic objects.

Skylights - Prof. James B. Kaler of the Department of Astronomy, University of Illinois, and a contributor to AccessScience, prepares "Skylights," the astronomy news of the week. It includes highlights of the major astronomical events, a featured "Star of the Week," and numerous links to background material.

StarDate Online - Visit the public education and outreach arm of the University of Texas' McDonald Observatory. All aspects of astronomy and star gazing for the amateur and the advanced observers.

Tarleton Science Planetraium - is an integral part of the new Science building at TSU. It is a state-of-the-art facility under a 40 foot dome. Our presentation equipment features a computer controlled Digistar II star field projector (one of only forty in the United States), and includes 18 slide projectors, 2 video projectors, 2 DVD players, 1 CD player, an 8-track digital tape unit, SVHS video and surround sound; all kept 'in sync' by another computer. Truly a fitting setting in which to view the wonders of the universe.

U. S. Naval Observatory - An award winning website which gives sunrise and sunset, phases of the moon, eclipse information, and more.

Yahoo's Directory of Astronomy Links - Find anything and everything about Astronomy and its related subjects.

Yahoo's Directory of Telescopes - For anyone who is interested in telescopes and the stars.