Book in German on search for extraterrestrial intelligence (SETI), with contribution by Stephen Hawking 2002
2017 Issue of The Martlet Magazine from University College Oxford, where Hawking was an undergraduate
Photograph of Stephen Hawking, Buzz Aldrin and students wearing T-shirts printed with "Get your ass to Mars"
Book with proceedings of early symposium on quantum gravity organized by close collaborators of Stephen Hawking 1975