Nobody knows what happened to the Jupiter I. It’s assumed that the ship crash-landed on a distant planet and the survivors were eaten by giant mountain ice weasels.
That’s a photo shoot for Mad Magazine‘s 1966 spoof, “Loused Up In Space” [courtesy Zorro Jr.].
[Top photo by Piotr Krzaczkowski of Śnieżka, found here, and yes, that’s his daily commute.]