The Last Panorama of the Spirit Rover on Mars . ... Credit Copyright: Mars Exploration Rover Mission , NASA , JPL , Cornell ; Image Processing: Kenneth Kremer , Marco Di Lorenzo Explanation: This is the last thing that the Spirit rover on Mars ever saw. ... Half a world away , Spirit's sister rover Opportunity continues to roll toward Endeavour Crater, which could become the largest crater yet visited by an earthling-created robot . ... NASA Web Site Statements, Warnings, and Disclaimers . ...