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Strange spotted rock on Mars could reveal signs of ancient life

A curious red Martian rock nicknamed Sapphire Canyon has scientists excited, as its spotted appearance hints at possible organic origins. On Earth, researchers tested a powerful laser technique, O-PTIR, on a similar rock found by chance in Arizona, proving it can rapidly and precisely reveal a material’s chemical makeup. This high-resolution method could play a key role in analyzing Mars samples once they arrive, adding to its growing track record in NASA missions like Europa Clipper.

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