Oldest known Mars rock offers glimpse of planet’s watery youth

Teghaza meteorite hints at surprisingly Earth-like crust and shows Mars was already losing its water 4.1 billion years ago.

Authors

Publication Details

Journal
Science
Published
2026-07-23
DOI
https://doi.org/10.1126/science.aek8031
Primary Topic
Planetary Science and Exploration
Type
article
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article

Oldest known Mars rock offers glimpse of planet’s watery youth

Paul Voosen
Science
Planetary Science and Exploration
article

Oldest known Mars rock offers glimpse of planet’s watery youth

Paul Voosen
article en

Abstract

Teghaza meteorite hints at surprisingly Earth-like crust and shows Mars was already losing its water 4.1 billion years ago.

ScienceVol. 393(6809)
Openalex Percentile: Top 9%
Planetary Science and Exploration
DOISourceOpenAlex
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Oldest known Mars rock offers glimpse of planet’s watery youth — Paul Voosen · Science (2026) | TGRS Research Map | TGRS