NASA's long-lived Mars Exploration Rover Spirit will finish its 1,000th Martian day Thursday, continuing a successful mission originally planned for 90 Martian days. A color 360-degree panorama released today -- produced from the most detailed imaging yet completed by either Spirit or its twin, Opportunity -- shows rugged terrain of the robot's current location amid a range of hills. The vista, dubbed the "McMurdo Panorama," comes from Spirit's panoramic camera and is available online at http://www.nasa.gov/mission_pages/mer/images/20061025.html .