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Moon Dust Could Hold Clues to Ancient Alien Civilizations, SETI Paper Argues
Key Takeaways
- A preprint on arXiv submitted to the International Journal of Astrobiology, led by SETI Institute associated researcher Lewis J. Pinault, proposes searching for alien artefacts in lunar soil rather than relying only on radio signals.
- Radio SETI suffers from a synchronicity problem: the Milky Way is about 13 billion years old, so the odds of our listening window overlapping with another civilization's transmitting window are extremely small.
- The paper describes two particle types: Arkhipov Particles, tiny fragments of unintentional industrial debris from destroyed megastructures such as Dyson swarms, and Bracewell Particles, deliberately sent smart dust probes.
- The authors argue interstellar delivery is plausible because the Sun orbits the Milky Way roughly every 230 million years, meaning our Solar System has traversed much of the galaxy repeatedly.
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DT Editorial Team··via universetoday.com