First Date of Publication
Feb, 1951
Original Source
Esquire Magazine
Additional Publication Information
Also appeared in "Mathenauts", an anthology of mathfiction edited by Rudy Rucker.
Medium
Short Story
Original Language
English
Kasman Review
ISFDB
Tags
Summary: After a freak accident flips their spaceship through the fourth dimension, two astronauts must determine whether their entire reality has been mirrored—before delivering a critical cargo that could either save or doom Earth. With no physical test to distinguish left from right in a reversed universe, their only hope lies in a crumpled scrap of paper floating in space.
Story Tag Line: Coming soon.
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