What is the potential problem for robotic rovers on Mars?

The limited  autonomy of the robotic rovers on Mars posed a big problem.

Explanation:

Missions are very costly, and can lead the project to fail with the simplest errors. If the rover was permanently trapped on a rock or destroyed, it would have a catastrophic impact on the exploration. Thus on-board technologies would still be more traditional than what a laboratory environment has sought. The autonomous rovers will considerably increase the productivity of  crew. Responsibility for their own well-being is also useful for the rovers: to prevent getting hurt, to recognize and correct recoverable hardware and software faults.

i don't know what the picture looks like but i can take a guess and say maybe basidiomycetes?

the electromagnetic energy from the sun arrives in the form of visible and invisible light.