This book, co-authored with Stephen Hawking, focused primarily on general relativity physics and the universe's structure. It's contributed to philosophy by examining the philosophical implications of general relativity, addressing questions of realism and determinism, exploring cosmological concepts, and shedding light on the methodology of scientific inquiry.
Hawking, S. W., and G. F. R. Ellis. The Large Scale Structure of Space-Time. Cambridge University Press, 1973.