Contents (view Concise Listing)

• 2 • H. J. Campbell Writes ... (Authentic Science Fiction Monthly #61) • [H. J. Campbell Writes ...] • essay by Herbert J. Campbell
• 3 • Guided Missiles • essay by uncredited
• 4 • The Classic Viking Rocket • essay by uncredited
• 7 • Audrey • essay by Kenneth Bulmer and John Newman [as by Kenneth Johns]
• 11 • The Ryan Flight Recorder • essay by James J. Ryan
• 14 • Nuclear Explosions and the Weather • essay by William L. Roper
• 19 • Automation • essay by uncredited
• 22 • The Scientist's Life - 4: The Physicist • essay by John Tayne
• 27 • Modern Metals - 2: Cobalt • essay by W. W. Byford
• 34 • Life as We Know it • essay by uncredited
• 36 • The Hour of Zero • short fiction by Jerome S. Mill
• 36 •  The Hour of Zero • interior artwork by John E. Mortimer
• 39 • The Way to the Planets - 4: The Design of the Space-Station • [The Way to the Planets • 4] • essay by Archie Roy [as by A. E. Roy]
• 44 • Learn and Like It • essay by uncredited
• 46 • Private Satellite (Part 1 of 2) • serial by John Burke [as by Jonathan Burke]
• 73 • One Every Minute • short story by E. C. Tubb
• 82 • Know Thy Neighbour • novelette by Kenneth Bulmer
• 103 • Citizen's Rights • short story by Alan Burns
• 115 • The Statics • short story by Philip E. High
• 130 • Homo Twice Over • short story by Alfred Hind
• 145 • The Lonely Ones • short story by Richard P. Ennis
• 151 • Book Reviews (Authentic Science Fiction Monthly #61) • essay by uncredited
• 155 • Projectiles (Authentic Science Fiction Monthly #61) • [Projectiles] • essay by The Readers