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A Drake Equation for Alien Artifacts.

James Benford1

  • 1Microwave Sciences, Lafayette, California, USA.

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Summary
This summary is machine-generated.

Searching for alien artifacts (SETA) offers a credible alternative to searching for extraterrestrial intelligence (SETI). Artifacts may endure longer than signals, making searches in near-Earth regions a viable strategy for detecting extraterrestrial civilizations.

Keywords:
ETEarth TrojanEarth co-orbitalsExtraterrestrial intelligenceMoonPlanetary radarRobotic probesSETASETISpace vehicles

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Area of Science:

  • Astrobiology
  • Astronomy
  • Search for Extraterrestrial Intelligence (SETI)

Background:

  • The conventional Search for Extraterrestrial Intelligence (SETI) focuses on detecting signals from alien civilizations.
  • Alien artifacts, if they exist, may offer a more enduring form of evidence for extraterrestrial life.

Purpose of the Study:

  • To propose and analyze a modified Drake equation incorporating the search for extraterrestrial artifacts (SETA).
  • To compare the efficacy of SETA with traditional SETI strategies.
  • To evaluate the potential for discovering alien artifacts in near-Earth regions.

Main Methods:

  • Development of a SETA Drake equation to quantify artifact detection probability.
  • Comparison of SETA and SETI strategies using a ratio of their respective Drake equations.
  • Quantification of scenarios involving artifact presence duration and origin volumes.

Main Results:

  • The ratio suggests that searching for artifacts near Earth is a credible alternative to SETI.
  • Artifacts possess a longer potential presence time in space compared to transient signals.
  • The origin volume for artifacts, influenced by stellar passages, is a key factor in detection probability.

Conclusions:

  • Emphasizing artifact searches, or 'ET archaeology,' is a valuable approach in the search for extraterrestrial life.
  • Investigating the Moon, Earth Trojans, and Earth co-orbitals for artifacts is recommended.
  • This research also offers opportunities for studying early Solar System remnants.