Day in Review: NASA Says Mars Rover Discovered Potential Biosignature Last Year

After a year's worth of scientific scrutiny, the 'Sapphire Canyon' rock sample remains the mission's best candidate for ... 

Missions __ News __ Galleries __ Events September 10, 2025 Mars NASA Says Mars Rover Discovered Potential Biosignature Last Year After a year's worth of scientific scrutiny, the 'Sapphire Canyon' rock sample remains the mission's best candidate for containing signs of ancient microbial life processes. Full Story, Images, and Video See This in Our 3D Solar System (Beta)

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