Bad News for Musk: Earthly microbes could turn deadlier on Mars, spelling doom for astronauts

A study shows that microbes reaching Mars with astronauts could become deadlier. Tommaso Zaccaria said, "Evaluating how microorganisms respond and tolerate space conditions is essential to ensure the safe access and exploration of space." These germs might thrive in Martian soil, potentially causing serious health risks for future human explorers.