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] 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.
[1][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.