Science NASA's Mars 2020 rover: tools it will use to hunt for ancient microbial life

On Thursday, NASA officials announced that the agency has agreed to support a suite of seven instruments for the Mars 2020 mission, which is likely to cost about $1.9 billion.

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NASA/AP

Thanks to NASA's Mars rover Curiosity, scientists have established that at least one location on the red planet hosted an environment that would have been hospitable to life.