
Eight years after landing on Mars for what was planned as a three-month mission, NASA’s enduring Mars Exploration Rover Opportunity is working on what essentially became a new mission five months ago.
Opportunity reached a multi-year driving destination, Endeavour Crater, in August 2011. At Endeavour’s rim, it has gained access to geological deposits from an earlier period of Martian history than anything it examined during its first seven years. It also has begun an investigation of the planet’s deep interior that takes advantage of staying in one place for the Martian winter.
via Mars Daily


