Naked Science - Five Years on Mars

Seizoen: 2011 - Aflevering: 17 / 158 - Eerst uitgezonden: 11 februari 2008 - Episode ID: 621093

They were sent to Mars on a 90-day mission, but almost five years later the rovers Spirit and Opportunity have traveled farther, seen more, and survived longer than anyone imagined possible, earning a place among the most prolific explorers in history.