American Astronomical Society

The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Wikipedia*

On the C-SPAN Networks:
American Astronomical Society has hosted 1 event in the C-SPAN Video Library; the first program was a 1998 Speech.