NASA/JPL-Caltech/UofA/USGS
It’s already last about 3 to 4 times as long as they had hoped for.. pretty cool little buggies.. they done good on a fairly tight budget..
Sorry Norm, gotta call you on something. They had a 90 DAY design lifetime. They’re in the neighbourhood of 4 years now. I’d say that’s a little more than 3 or 4 times :D:D:D. I read an article on Space.com recently by one of the investigators (read scientists) that was rather emotional about the prospect of losing these little guys. Even with bigger and better rovers on the way. Spirit and Opportunity have done well with very little. Just goes to show you what a little bit of scientific know-how can do for you!