”[…] My attention was quickly riveted by a large red star close to the distant horizon. As I gazed upon it I felt a spell of overpowering fascination—it was Mars, the god of war… As I gazed at it on that far-gone night it seemed to call across the unthinkable void…”
— Edgar Rice Burroughs
[Earth, seen from Mars, photo taken by the Mars Curiosity Rover]