Why is the current search primarily focused on fossilized evidence rather than extant life on the Martian surface?

Answer

The surface environment is extremely hostile due to intense ultraviolet radiation and low temperatures

The current surface conditions, characterized by intense UV radiation and very low temperatures, are too hostile for known life, suggesting any extant life would be deep underground.

Why is the current search primarily focused on fossilized evidence rather than extant life on the Martian surface?

#Videos

Signs of Life on Mars? NASA's Discovery, Explained | NOVA | PBS

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