These objects use a novel type of plutonium-rhodium battery for backup power.
These objects use a novel type of plutonium-rhodium battery for backup power. Originally planned to operate for only 90 days, these craft operated well past that time in hostile conditions. Sent via Atlas II launch platforms, their programming includes significant autonomic protocols to lessen the human involvement necessary to maintain operations. For 10 points, name these two centerpieces of NASA's Mars Exploration Rover Mission.
These objects use a novel type of plutonium-rhodium battery for backup power.
{Spirit} and {Opportunity} (prompt on “Mars Rovers”)