Ancient Martian Meteorite Teghaza 001 Used to Date Its Rock

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A slice of Teghaza 001, among the oldest Martian meteorites ever recovered on Earth, was used by scientists to determine the age of the rock. Reflected-light images of the sample act as a road map, guiding researchers to the minerals they want to study. These images help direct analysis by different instruments. The accompanying figures show the same view with annotations marking points of interest. The article is a NASA description of the sample and the imaging methods used to study it.

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