关于这张图
This image shows the back of Coring Bit 2 in the bit carousel of NASA's Perseverance Mars rover. A wavy, stringlike piece of foreign object debris (FOD) can be seen on the left side of the bit (the lower center of image). Coring Bit 2 was recently used to sample the sedimentary rock at "Wildcat Ridge." The image was obtained by the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) camera on Aug. 17, 2022, the 531st Martian day, or sol, of the mission. Located in the turret at the end of the rover's robotic arm, WATSON can document the structure and texture within a natural…
