Bracewell probe

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The Bracewell probe is a hypothetical intelligent spacecraft concept devised by physicist Ronald N. Bracewell.

history

In 1960, Bracewell suggested that interstellar "message probes" could be an alternative to radiometry in the search for extraterrestrial intelligences.

The unmanned probes should fly to stars that appear favorable for the development of life and make contact with a civilization there, or wait until one arises. - In this case, stored messages from Earth should be played and the reactions of the aliens should be sent to Earth.

Bracewell probes and the Fermi paradox

Since the construction of such space probes does not contradict the laws of nature, it can be assumed that extraterrestrial civilizations have also sent such probes and that they would also make contact with humanity. The search for such probes is referred to as SETA ("Search for Extra Terrestrial Artefacts"). Such contact or the discovery of a Bracewell probe has not yet taken place.

Candidates

The idea was raised by the Australian astronomer Duncan Steel that the 1991 VG object could be a Bracewell probe, but recent observations contradict this interpretation.

See also

Individual evidence

  1. ↑ Bracewell probes , Encyclopedia of Science, December 9, 2014.
  2. ↑ 1 Have We Been Visited? , Encyclopedia of Science, December 9, 2014.
  3. ↑ Bracewell probes , Encyclopedia of Science, December 9, 2014.
  4. ↑ Searching for traces of the extrasolar monolith ( Memento from January 31, 2012 in the Internet Archive ), Telepolis, January 3, 2012.
  5. ↑ 1991VG The Strange Story of 1991 VG , Final Frontier, November 27, 2008.

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