image: Pink arrows point to spherical, radiating aggregates of gypsum crystals observed in the lower part of stromatolitic sample from Salar de Pajonales in northern Chile. These structures illustrate gypsum mineralization associated with microbial biosignatures.
Credit: Tebes-Cayo et al., 2026.
Journal
Frontiers in Astronomy and Space Sciences
Method of Research
Experimental study
Subject of Research
Not applicable
Article Title
Gypsum as a repository of extinct and extant biosignatures at Salar de Pajonales, northern Chile
Article Publication Date
5-Feb-2026
COI Statement
The author(s) declared that this work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.