Space station experiment suggests Mars rovers will need to dig deep to find life
The search for signs of life, past or present, on Mars may have hit a stumbling blocks as new results show how the rovers will be unable to detect biomarkers on the surface.
TroibNews 
The search for signs of life, past or present, on Mars may have hit a stumbling blocks as new results show how the rovers will be unable to detect biomarkers on the surface.
