Windows to the Universe - user-friendly learning system on the earth and space sciences for use by the general public. From the University Corporation for Atmospheric Research.
SMEX: TRACE - overview of the TRACE mission as part of NASA's Small Explorer (SMEX) program.
International Astronomical Union (IAU) - promotes and safeguards the science of astronomy in all its aspects through international cooperation. The sole internationally recognised authority for assigning designations to celestial bodies and surface features on such bodies.
Arecibo Observatory - world's largest single-dish radio telescope, located in Puerto Rico.
European Southern Observatory - operates astronomical observatories in Chile and has its headquarters in Garching, Germany.
W.M. Keck Observatory - home of the world's largest optical and infrared telescopes; located on the summit of Hawaii's dormant Mauna Kea volcano. Includes news, photo gallery, and information on the interferometer.
Two Micron All Sky Survey at UMass (2MASS) - project manager and technology developer for the large-area near-infrared survey of the sky. Includes information on the cameras and telescopes used in the survey, images, and status report.
Sloan Digital Sky Survey - project to survey a 10000 square degree area on the Northern sky over a 5 year period.
The Spacewatch Project - group at the University of Arizona's Lunar and Planetary Laboratory exploring the various populations of small objects in the solar system. Features summaries of interesting asteroids, discoveries, and news.
Minor Planet Center - collects, computes, checks, and disseminates astrometric observations and orbits for minor planets and comets; operates at the Smithsonian Astrophysical Observatory in Massachusetts.
Sunspot Cycle Predictions - Marshall Space Flight Center predictions. Also provides basic information on solar structure, features, and activity.
Tour of the Sun - basic information on the Sun; from the Yohkoh Public Outreach Project.
BOOMERanG Home Page - project to map the Cosmic Microwave Background (CMB) using a balloon-borne telescope which circumnavigates Antarctica.
Failure Is Not an Option - Gene Kranz, former NASA Flight Director, looks back on Mission Control from Mercury to Apollo 13 and beyond.
The Total Solar Eclipse Web Sight - information about the astronomy of solar eclipses and their profound influence on the religion, mythology, and culture of ancient civilizations. Created and maintained by Robin Edgar.