Life Beyond Biosignatures: A New Method In The Search For Life

This artist's illustration shows what Mars might look like if it were terraformed. New research shows how the effects of terraforming, whether intentional or not, could help identify clusters of planets the are habitable and that life has spread to. Image Credit: Daein Ballard / CC BY-SA 3.0.

Researchers from the Earth-Life Science Institute (ELSI) and National Institute for Basic Biology have developed a new method to detect extraterrestrial life without relying on traditional biosignatures. By modelling how life might spread between planets, they demonstrate that life could be detected through statistical patterns across planetary populations rather than on individual planets. This “agnostic biosignature” approach could assist in guiding future searches for life beyond Earth.

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