Here’s something I didn’t know: CS Lewis and Arthur C. Clarke conducted a friendly correspondence/debate about the moral significance of space travel. Clarke apparently first wrote to Lewis in 1943 to object to Lewis’ characterization of space-travel scientists in the Silent Planet series. Lewis responded, and the two exchanged brief letters on the subject over the years, with Lewis maintaining that space travel would be a catastrophe and Clarke arguing the opposite. From Narnia to a Space Odyssey compiles this correspondence.

Judging by the Kuro5hin review linked above, and looking at reader reviews on the book’s Amazon page, it sounds as though the Lewis/Clarke correspondence is too skimpy to make for a satisfying exploration of the space-travel topic. Nevertheless, it’s fun to see a side of Lewis that is sometimes overlooked in favor of his more famous Narnia and theological books.