Perseverance’s Sapphire Canyon Drill: Nature Validates the Mission’s Best Biosignature Candidate on Mars
To the point
Perseverance drilled Sapphire Canyon in Jezero Crater and found signs of past water, organic material, and chemical reactions that could indicate ancient microbial life, and after independent review Nature named it the strongest biosignature candidate so far, though confirming life requires more data or returning the sample to Earth, with Lindsay Hays explaining what counts as a biosignature and Morgan Cable explaining why the rock stood out, and Curiosity updates tied to NASA's Artemis program.