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Home The calibration target for SHERLOC, one of the instruments aboard NASA’s Perseverance Mars rover, features a slice of Martian meteorite, plus spacesuit materials, including helmet-visor material that doubles as a geocache target. (NASA/JPL-Caltech) The calibration target for SHERLOC, one of the instruments aboard NASA's Perseverance Mars rover, features a slice of Martian meteorite, plus spacesuit materials, including helmet-visor material that doubles as a geocache target. (NASA/JPL-Caltech)

The calibration target for SHERLOC, one of the instruments aboard NASA’s Perseverance Mars rover, features a slice of Martian meteorite, plus spacesuit materials, including helmet-visor material that doubles as a geocache target. (NASA/JPL-Caltech)

The calibration target for SHERLOC, one of the instruments aboard NASA's Perseverance Mars rover, features a slice of Martian meteorite, plus spacesuit materials, including helmet-visor material that doubles as a geocache target. (NASA/JPL-Caltech)

The calibration target for SHERLOC, one of the instruments aboard NASA’s Perseverance Mars rover, features a slice of Martian meteorite, plus spacesuit materials, including helmet-visor material that doubles as a geocache target. (NASA/JPL-Caltech)

Scientists use the color swatches on the primary calibration target for Mastcam-Z – a pair of zoomable cameras aboard NASA’s Perseverance Mars rover – to fine-tune the cameras’ settings. Symbols and mottos relevant to the mission are included around the target’s perimeter. (NASA/JPL-Caltech/ASU/MSSS/U of Copenhagen)
This fragment of a Martian meteorite, seen floating inside the International Space Station, is is now part of a calibration target for SuperCam, one of the instruments aboard NASA’s Perseverance Mars rover. (NASA/JPL-Caltech /LANL/CNES/ESA/Thomas Pesquet)
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