Latest Science

The significance of Mars rover's latest discovery

This week, NASA said scientists took the biggest step yet toward discovering whether there was ever life on Mars when a rock sample collected by the Mars rover Perseverance contained potential biosignatures, which could suggest ancient signs of life. Douglas Jerolmack, a professor of Earth and environmental science at the University of Pennsylvania, discusses the significance of the discovery.

Mars rocks may hold signs of ancient life

NASA's Mars rover Perseverance has uncovered rocks in a dry river channel that may hold potential signs of ancient microscopic life, according to scientists. Mark Strassmann reports.

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