Designed to last 90 days on Mars and starting its' TENTH year on Mars 1-24-13, NASA's other Martian Rover Opportunity has the record to beat.
Curiosity has been getting all the press and accolades since landing on Mars last year but Opportunity and her now dead twin rover Spirit have been there and done that on the Red Planet for almost two decades combined.
Opportunity is still plugging away and acquiring more data each day. No one knows how long the intrepid rover will last but it is truly incredible she has lasted this long.
Read More About It: http://www.nasa.gov/mission_pages/mer/news/mer20130122.html
Sky Guy in VA