The National Aeronautics and Space Administration is an independent agency of the United States Federal Government responsible for the civilian space program, as well as aeronautics and space research ...

The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC ...

The Royal Astronomical Society is a learned society and charity that encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science ...