Tuesday, June 30, 2026
Science

How long could Earth microbes live on Mars?

Searching for past or present life on Mars is the sole driving force behind every mission we send to the red planet, from orbiters to landers to rovers. However, there remains a concern in the scientific community about Earth-based microbes hitching a ride on Mars-bound spacecraft, also called forwa...

How long could Earth microbes live on Mars?
Image: Phys.org
Searching for past or present life on Mars is the sole driving force behind every mission we send to the red planet, from orbiters to landers to rovers. However, there remains a concern in the scientific community about Earth-based microbes hitching a ride on Mars-bound spacecraft, also called forward contamination. The concern is potentially mistaking Earth microbes for Mars life or that Earth microbes potentially influence samples of Mars life we might find. While NASA is dedicated to mitigating it as much as possible, could new methods help determine how long Earth-based microbes could survive on Mars and alleviate concerns about forward contamination?

Originally published at Phys.org

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