How does studying life thriving in extreme conditions on Earth (extremophiles) assist the search for life elsewhere?

Answer

It informs the understanding of Earth’s resilience and potential habitable zones.

The focused study of extremophiles—life surviving in seemingly impossible conditions like deep-sea vents—helps scientists better define the potential diversity of habitable zones throughout the universe by showing Earth's own environmental resilience.

How does studying life thriving in extreme conditions on Earth (extremophiles) assist the search for life elsewhere?
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