Table of contents.
- [novel] Jack Williamson's "The Fortress of Utopia": "On a lifeless mystery satellite, five lone mortals summon secret forces of the citadel of science to free the earth from the doom of the dark nebula!"
- Jack Binder's "They Changed the World".
- Lloyd Arthur Eschbach's "Three Wise Men": "A time-traveling machine explodes on a millionaire's doorstep".
- Stanley G Weinbaum's "A Martian Odyssey"; download: A man makes a trek across Mars, meeting a variety of aliens.
This is one of the most famous stories of science fiction - said to be the first one that depicted aliens as truly alien rather than hominid variations. A few months later came C L Moore's "The Bright Illusion" - also depicting aliens as truly alien, but Weinbaum was there first.