Contains:

Antimatter (1937) : Minus planet / John D. Clark, Ph. D. -- Clone (1952) : Yesterday house / Fritz Leiber -- Collapsed stars (1966) : Neutron star / Larry Niven -- Cosmic disaster (1839) : The conversation of Eiros and Charmion / Edgar Allan Poe -- Earth inherited by other mammals (1938) : The faithful / Lester del Rey -- Generation starship (1940) : The voyage that lasted 600 years / Don Wilcox -- Home computer (1946) : A logic named Joe / Murray Leinster -- Invisibility (1859) : What was it? / Fitz-James O'Brien -- Microcosmic world (1858) : The diamond lens / Fitz-James O'Brien -- Overpopulation (1954) : The test / Richard Matheson -- Solar power from satellites (1941) : reason / Isaac Asimov -- Tank (1903) : The land ironclads / H.G. Wells.