Planetary Footprints: A Population-Scale Biosignature Approach to Detecting Life Across Exoplanets

To the point

Harrison Smith and Lana Sinapayen propose a population‑level biosignature approach that detects life by identifying correlated patterns across many exoplanets caused by life spreading and terraforming, rather than chasing a single planet’s chemical sign.

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

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