Armageddon—2419 A. D.
Philip Francis Nowlan
Buck Rogers (1)
The Machine
John W. Campbell
The Machine (1)
A Columbus of Space
Garrett P. Serviss
The Mightiest Machine (Part 2 of 5)
John W. Campbell, Jr.
Mightiest Machine (1)
The Mightiest Machine
The Sword and the Atopen
Taylor H. Greenfield
John Jones's Dollar
Harry Stephen Keeler
Islands in the Air
Lowell Howard Morrow
Omega, the Man
The Color of Space
Charles R. Tanner
Brigands of the Moon
Ray Cummings
Gregg Haljan (1)
Ralph 124C 41+: A Romance of the Year 2660
Hugo Gernsback
The First Men in the Moon
H. G. Wells
Cavor (1)
The Master Mind of Mars
Edgar Rice Burroughs
Barsoom (6)
The Planetoid of Peril
Paul Ernst
When the Atoms Failed
Born of the Sun
Jack Williamson
Beyond the End of Space
Atkill (2)