• Science, Volume 391, Issue 6787, February 2026. • Science, Volume 391, Issue 6787, February 2026.

Article Summaries:

  • A study published in Science (Vol. 391, Issue 6787, February 2026) reports the discovery of carbonated ultramafic igneous rocks in Jezero crater on Mars. Using orbital spectroscopy and rover-based mineral analyses, researchers identified magnesium‑rich, carbonate‑bearing basaltic units that indicate past interaction with liquid water. The findings suggest that hydrothermal systems once operated in Jezero, potentially creating environments conducive to life. The study also refines the crater’s geological timeline, showing that the carbonate‑bearing units formed during the Noachian-Hesperian transition. This work enhances understanding of Mars’ aqueous history and informs future astrobiological exploration.
  • In a February 2026 issue of Science, researchers report the first identification of carbonated ultramafic igneous rocks on Mars, located in Jezero crater. Using orbital spectroscopy and rover‑borne X‑ray diffraction, the team detected magnesium‑rich silicates that have incorporated carbonate minerals, indicating that the rocks once interacted with liquid water. The findings suggest that Jezero crater hosted hydrothermal systems capable of altering ultramafic rocks, a process that on Earth can produce energy‑rich environments for microbial life. This discovery refines models of Mars’ aqueous history and highlights Jezero crater as a prime target for future astrobiological investigations.

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