Mars Rovers Turn 5

The first of NASA’s twin Mars Rovers, Spirit turned 5 the other day (Jan 3). It’s twin, Opportunity arrived about 3 weeks later, and so will celebrate its incredible 5th year of exploration on Jan 21st. Considering that NASA was hoping to get 3 months worth of performance out of these guys, I’d say it seems they got their money’s worth this time. The rovers have done much to advance our knowledge of Mar’s watery past.