Christopher F. Chyba is an American astrobiologist and Professor of Astrophysical Sciences and International Affairs at the Princeton School of Public and International Affairs.^[1][2][3]

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He graduated from Swarthmore College in 1982, and studied mathematical physics at the University of Cambridge as a Marshall Scholar. He then received his Ph.D. in astronomy, with an emphasis in planetary science, from Cornell University in 1991.^{[permanent dead link]} He was a White House Fellow on the National Security Council staff, and then serving in the Office of Science and Technology Policy (OSTP) from 1993 to 1995. He was a member of the SETI Institute Board of Trustees from 2005 to 2007.^[4][5][6]

• 2001 MacArthur Fellows Program
• The asteroid 7923 Chyba was named in Chyba's honor.

• "Commencement Address", June 1, 2003
• "Contingency and the Cosmic Prospective", The new astronomy: opening the electromagnetic window and expanding our view of planet earth, Editor D. Wayne Orchiston, Springer, 2005, ISBN 978-1-4020-3723-8
• Comets and the origin and evolution of life, Editors Paul J. Thomas, Christopher F. Chyba, Springer, 2006, ISBN 978-3-540-33086-8
• U.S. nuclear weapons policy: confronting today's threats, Editors George Bunn, Christopher F. Chyba, William James Perry, Center for International Security and Cooperation, Freeman Spogli Institute for International Studies, Stanford, Calif., 2006, ISBN 978-0-8157-1365-4