Sigma Live

Discovery on Mars Could Change What We Know About the Planet

Published March 9, 2026, 09:11
Discovery on Mars Could Change What We Know About the Planet

A scientific team from the SETI Institute and NASA has discovered a mysterious mineral on Mars that could change our understanding of the planet's geological history. The mineral, a rare type of iron sulfate (potentially unknown until now), was identified in the Valles Marineris and Aram Chaos regions through satellite observations. Its formation requires high temperatures above 100°C and the presence of oxygen, suggesting that some areas of Mars remained thermally and chemically active for a longer period than previously thought. This discovery also explains a long-standing scientific mystery regarding the unusual spectral characteristics of certain layers of sulfate minerals on Mars.