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"We follow the scientists around and look over their shoulders. They're watching their feet: provable mistakes are bad for them. We're looking as far ahead as we can, and we don't get penalized for mistakes."
- Larry Niven

Ramscoop  
  An enormous magnetic field precedes a spaceship moving through space, directing interstellar hydrogen inward for use as fuel.  

See Bussard Ramjet.

The Belt telescopes, unhampered by atmospheric distortion, were able to see planets circling other suns; and the interstellar ramscoop robots had been search out man-inhabitable systems for nearly a century.
From World of Ptavvs, by Larry Niven.
Published by Not Available in 1965
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