Organization Quest University

Pembroke College, Oxford

Open University (1972-2009)

University of Reading

University of Denver

Colorado College

Gresham College

Columbia University

University of Cambridge

Danish Space Research Institute

American Astronomical Society

American Institute of Physics

Board of Science Counts

Committee for Skeptical Inquiry

New York Astronomical Society

Sigma Xi

New York Academy of Sciences

International Astronomical Union

Astronomical Society of the Pacific

PEN America