Mars rover Curiosity update, photos: NASA rover carrying a lucky penny as a calibration target

If you collect coins, then NASA has the ultimate penny for your collection.

Curiosity, the rover currently exploring Mars, is carrying a 1909 "VDB" Lincoln Cent, according to Science.com.

According to the report, the coin is used as a calibration target for the robot's Mars Hand Lens Imager ( MAHLI) instrument.

In other Curiosity news, the rover recently snapped some new images of the Martian surface.

The photos are taken using a 2-megapixel MastCams and released on NASA's website.

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