John Berkey’s 1995 cover to The Immortality Option, by James P. Hogan
Douglas Chaffee depicts life on Mars (with a shell to protect against UV light), used to illustrate the article “Mars,” by Carl Sagan, from the December 1967 issue of National Geographic
Happy Sci-Fi Dolphin Saturday with Gray Morrow’s August 1965 cover art for Galaxy magazine. It’s illustrating The Shipwrecked Hotel, a story by James Blish and Norman L. Knight that features future-humans with gills riding dolphins in the year 2794
Ralph McQuarrie + weird little guys