Einstein's Planetoid
C. M. Kornbluth & Frederik Pohl & Robert Lowndes
Runaround
Isaac Asimov
Mike Donovan (Robot) (1)
Child of the Sun
Leigh Brackett
The Star Mouse
Fredric Brown
Black Friar of the Flame
The Sorcerer of Rhiannon
Mars (1)
Beyond the Farthest Star
Edgar Rice Burroughs
Outlaw of Mars
Festus Pragnell
Don Hargreaves (1)
Sir Mallory's Magnitude
C. M. Kornbluth
Armageddon, 1948
Ed Earl Repp
Red Gem of Mercury
Henry Kuttner
Seat of Oblivion
Eric Frank Russell
Tumithak of the Towers of Fire
Charles R. Tanner
Tumithak (3)
A Good Knight's Work
Robert Bloch
Kidnaped in Mars
Nightfall
Isaac Asimov & Robert Silverberg
Elsewhen
Robert A. Heinlein
Mars-Tube
The Wonder Effect SS (1)
Invaders from Nowhere
L. Sprague de Camp
The Red Death
David H. Keller, M.D.