Giuseppe Cocconi and Philip Morrison advised listening to frequencies adjacent to the neutral hydrogen emission line at 21 cm (1420 MHz) because its intensity and diffusion throughout the cosmos make it a suitable reference point for other technological civilizations.

Authors

• Person: Not available Organization: Interdisciplinary Encyclopedia of Religion and Science
  Extraterrestrial life - Inters.org

Sources

• Extraterrestrial life - Inters.org inters.org Interdisciplinary Encyclopedia of Religion and Science via serper

Referenced by nodes (1)

• Philip Morrison entity