What American science fiction author and astrophysicist, wrote the 1987 novel, Great Sky River?
Great Sky River (novel): Great Sky River is a 1987 novel written by author Gregory Benford as a part of his Galactic Center Saga series of books. Gregory Benford: Gregory Benford (born January 30, 1941) is an American science fiction author and astrophysicist who is on the faculty of the Department of Physics and Astronomy at the University of California, Irvine.
Gregory Benford