Sir Arthur Charles Clarke was one of the most important and influential figures in 20th century science fiction. He spent the first half of his life in England, where he served in World War Two as a radar operator, before emigrating to Ceylon in 1956. He is best known for the novel and movie 2001: A Space Odyssey, which he co-created with the assistance of Stanley Kubrick. Clarke was a graduate of King's College, London where he obtained First Class Honours in Physics and Mathematics. He is past Chairman of the British Interplanetary Society, a member of the Academy of Astronautics, the Royal Astronomical Society, and many other scientific organizations. Author of over fifty books, his numerous awards include the 1961 Kalinga Prize, the AAAS-Westinghouse science writing prize, the Bradford Washburn Award, and the John W. Campbell Award for his novel Rendezvous With Rama. Clarke also won the Nebula Award of the Science Fiction Writers of America in 1972, 1974 and 1979, the Hugo Award of the World Science Fiction Convention in 1974 and 1980, and in 1986 became Grand Master of the Science Fiction Writers of America. He was awarded the CBE in 1989.

Gregory Benford 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. As a science fiction author, Benford is best known for the Galactic Center Saga novels, beginning with In the Ocean of Night (1977). This series postulates a galaxy in which sentient organic life is in constant warfare with sentient mechanical life.