Posted by tourdemars to Mars Exploration Rovers at October 27, 2004 09:05 AM

Those work-a-day robots – Spirit and Opportunity – remain steadfast in their Mars research duties. But scientists must face the day when each rover surrenders to electronic or mechanical breakdown, or falls victim to Mars itself. Both rovers long ago finished their three-month primary missions and even their first mission extensions. The twin robots began their second extra-inning sessions earlier this month.