Alien Contact More Likely by "Mail" Than Radio, Study Says


Alien Contact More Likely by "Mail" Than Radio, Study Says -- Stefan Lovgren  -- National Geographic News  -- September 1, 2004
SETI

A new study suggests it is more energy efficient to communicate across interstellar space by sending physical material?a sort of message in a bottle?than beams of electromagnetic radiation. Currently, the bulk of the effort to identify extraterrestrial civilizations has focused on the electromagnetic spectrum.

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