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news Astronomy Evidence status: Peer reviewed · Laboratory analysis of one meteorite

Teghaza 001 meteorite formed at least 4.1 billion years ago and samples Mars’s early crust

Teghaza 001, an 800 g Sahara meteorite, formed at least 4.1 billion years ago and samples Mars's early crust and a primordial mantle source, Science reports.

What it does not show If a later heating or fluid event reset all three clocks together, 4.1 billion years is when that happened and the rock crystallised earlier, so the age is a minimum.

By Murad Ali Khan 13 min read
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