Walter Cronkite interview #scifi authors Arthur C. Clarke and Robert A. Heinlein during Apollo 11.
Walter Cronkite interviews science fiction authors Arthur C. Clarke and Robert A. Heinlein during Apollo 11. https://t.co/GixILmuEhe
Walter Cronkite interviews science fiction authors Arthur C. Clarke and Robert A. Heinlein during Apollo 11. https://t.co/GixILmuEhe