Michael Whelan’s cover art for 2010 Odyssey Two by Arthur C. Clarke, 1982

Michael Whelan, cover illustration for Ensign Flandry, by Poul Anderson (Ace Books, 1979). Acrylic on illustration board.

Bruce Pennington’s 1974 cover art for Beyond This Horizon, by Robert Heinlein

Les Edwards cover art for the 1984 Sphere edition of Conan The Rebel by Poul Anderson