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An Agnostic Biosignature Based on Modeling Panspermia and Terraforming

  • Authors: Harrison B. Smith, Lana Sinapayen

Harrison B. Smith and Lana Sinapayen 2026 The Astrophysical Journal 1001 .

  • Provider: AAS Journals

Caption: Figure 6.

PCA of planetary compositions at a terraformed ratio of 0.04, the earliest time step where we detect selected clusters (red). PCA is used here only for displaying 10 compositional dimensions on a 2D page and was not used for clustering.

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