Scientists will be using an instrument on the Opportunity rover to test the rock and see if it is a meteorite.
This is a picture of "Block Island," an odd-shaped, dark rock, which may be a meteorite.
Mars Exploration Rover team members continued longer-duration test runs this week, driving the test rover forward and uphill in a crab-like position.
Rover team members at NASA's Jet Propulsion Laboratory, Pasadena, Calif., on July 24, 2009, discuss the next step in preparing for a new phase in testing of possible moves for getting NASA's Mars rover Spirit out of a sandtrap on Mars.
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this stereo, 360-degree view of the rover's surroundings on the 1,950th Martian day, or sol, of its surface mission (July 19, 2009).
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this 360-degree view of the rover's surroundings on the 1,950th Martian day, or sol, of its surface mission (July 19, 2009).
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this 360-degree view of the rover's surroundings on the 1,950th Martian day, or sol, of its surface mission (July 19, 2009).
Mars Exploration Rover team members on July 21, 2009, tested how altering the order in which individual wheels turn for steering affects how those turns dig the wheels deeper into soft soil.
Rover team members Kim Lichtenberg and Joseph Carsten watch motions of a test rover at NASA's Jet Propulsion Laboratory, Pasadena, Calif., as the rover carries out commands for driving forward with an arc toward the right.
In this view from behind a test rover at NASA's Jet Propulsion Laboratory, Pasadena, Calif., the rear wheels of the rover are turned toward the left, and the left-front wheel is turned toward the the right.
This stereo scene combines frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,891st Martian day, or sol, of Spirit's mission on Mars (April 28, 2009).
This scene combines seven frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,891st Martian day, or sol, of Spirit's mission on Mars (April 28, 2009).
This stereo scene combines frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,871st Martian day, or sol, of Spirit's mission on Mars (April 8, 2009).
This scene combines five frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,871st Martian day, or sol, of Spirit's mission on Mars (April 8, 2009).
This stereo scene combines frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,869th Martian day, or sol, of Spirit's mission on Mars (April 6, 2009).
This scene combines three frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,869th Martian day, or sol, of Spirit's mission on Mars (April 6, 2009).
This stereo scene combines frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,866th Martian day, or sol, of Spirit's mission on Mars (April 3, 2009).
This scene combines three frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the 1,866th Martian day, or sol, of Spirit's mission on Mars (April 3, 2009).
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this 360-degree view of the rover's surroundings on the 1,912th Martian day, or sol, of its surface mission (June 10, 2009).
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this stereo, 360-degree view of the rover's surroundings on the 1,912th Martian day, or sol, of its surface mission (June 10, 2009).