Astronomy & Space
- Research Centers
- Astronomical Institute "Anton Pannekoek"
- Astronomisches Institut Bochum (AI-RUB)
- Baja Astronomical Observatory
- Bologna Astronomy Museum
- Bradford Robotic Telescope
- Canada-France-Hawaii Telescope
- Challenger Center for Space Science Education
- Cornell Astronomy
- Dominion Radio Astrophysical Observatory
- European Southern Observatory
- Florida Institute of Technology Department of Physics and Space Sciences
- Goddard Space Flight Center
- Harvard College Observatory
- Harvard-Smithsonian Center for Astrophysics
- Infrared Processing & Analysis Center
- Institute of Astronomy - University of Cambridge
- Jet Propulsion Labatory
- Kennedy Space Center
- Leicester X-ray and Observational Astronomy
- Malin Space Science Systems, Inc.
- Max Planck Institute for Astrophysics
- MIT - Haystack Observatory
- MIT - Millstone Hill Observatory
- Mount Wilson Observatory
- NASA Ames Research Center
- NASA Solar and Heliospheric Observatory
- NASA Wallops Flight Facility
- National Aeronautics and Space Administration (NASA)
- National Astronomy and Ionosphere Center
- National Optical Observatories
- National Radio Astronomy Observatory
- New Mexico State University - Department of Astronomy
- Northwestern University Physics & Astronomy
- Ohio University, Astronomy and Astrophysics
- Oxford Astrophysics
- San Diego State University - Mount Laguna Observatory
- Smithsonian Astrophysical Observatory
- Space Environment Center
- Stanford Solar Center
- Students for the Exploration and Development of Space
- Thueringer Landessternwarte Tautenburg
- University of Hawaii Institute for Astronomy
- University of Massachusetts Astronomy Department
- University of Michigan - Department of Astronomy
- University of New South Wales, Astrophysics & Optics Department
- University of St. Andrews, Astronomy Group.
- University of Victoria Physics & Astronomy