Extraterrestrial intelligence: an international petition.

@article{Sagan1982ExtraterrestrialIA,
  title={Extraterrestrial intelligence: an international petition.},
  author={C. Sagan},
  journal={Science},
  year={1982},
  volume={218 4571},
  pages={
          426
        }
}
  • C. Sagan
  • Published 1982
  • Political Science, Medicine
  • Science
  • The human species is now able to communicate with other civilizations in space, if such exist. Using current radioastronomical technology, it is possible for us to receive signals from civilizations no more advanced than we are over a distance of at least many thousands of light years. The cost of a systematic international research effort, using existing radio telescopes, is as low as a few million dollars per year for one or two decades. The program would be more than a million times more… CONTINUE READING
    10 Citations

    Topics from this paper.

    Toward a multi-path approach for SETI
    Searching for a standard Drake equation
    Interstellar Communication: The Case for Spread Spectrum
    • 12
    • PDF
    THE CASE FOR SPREAD-SPECTRUM SIGNALING IN INTERSTELLAR MESSAGING
    Being Optimistic about SETI
    • 3
    Signals from ETI detected — What next?
    • 2

    References

    Kitt Peak National Observatory
    • 26
    • PDF