Craters could give clue to any life on Mars

Craters from asteroid impacts may be one of the best places to look for life on Mars, a study suggests.

Craters could give clue to any life on Mars

Scientists have found microbes thriving more than a mile under a US crater where a space rock smashed into the Earth 35 million years ago.

They believe craters may provide a refuge protecting bugs from events such as ice ages or global warming.

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