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"A science fiction story is a story built around human beings, with a human problem and a human solution, which would not have happened at all without its scientific content."
- Theodore Sturgeon

Retard-Jets  
  Rockets to slow down.  

Minutes later our retard-jets — simple atomic rockets, not our overdrive engines — were checking our fall toward Damon.
Technovelgy from Brother Worlds, by Raymond Z. Gallun.
Published by Thrilling Wonder Stories in 1951
Additional resources -

Jules Verne originated this idea, essential to space travel; see retro-rockets from From the Earth to the Moon (1867).

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Additional resources:
  More Ideas and Technology from Brother Worlds
  More Ideas and Technology by Raymond Z. Gallun
  Tech news articles related to Brother Worlds
  Tech news articles related to works by Raymond Z. Gallun

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