North America

• Charles W. Boley
• Amara Graps
• Hillside Elementary School, Minnesota
• Jet Propulsion Laboratory (JPL)
• Joint Astronomy Centre, Hawaii
• Lawrence Livermore National Laboratory (LLNL)
• National Air and Space Museum
• National Energy Research Supercomputer Center
• National Science Teachers Association
• National Space Science Data Center (NSSDC)
• Rice University
• Small Planet Communications
• Southwest Research Institute [new! - 1996 Oct 11]
• Space Telescope Science Institute (STScI)
• Texas A&M University
• University of Alabama
• Univ. of Hawaii Institute for Astronomy
• Univ. of Maryland astronomy dept.
• University of Michigan
• Univ. of Oregon
• U. Penn Physics
• Univ. of Rochester
• Univ. of Texas/McDonald Observatory
• University of Washington
• Whately Observatory, Univ. of Massachusetts

South America

• Cerro Tololo Interamerican Observatory (CTIO)
• European Southern Observatory (ESO)

Europe

• International Ultraviolet Explorer (IUE)
• Max Planck Institute
• Poland (FTP site)
• Universitat Karlsruhe
• Univ. of Rennes
• Univ. of Strasbourg (CDS)

Asia & Australia

• Australian National University
• Japan (Views of the Solar System mirror)
• Monash University
• Tokyo University
• Tokyo University (JPL mirror)