What If Mars Already Hosts Microbes? Planetary Protection Dilemma
We’ve spent half a century treating Mars like a pristine crime scene. Gloves on. Tweezers out. Don’t smudge the evidence. But what if the “evidence” is alive—right now—clinging to salty grains in the regolith, hiding in the pores of basalt, or sleeping deep below the frost line? If Mars already hosts microbes, our red-planet playbook … Read more