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Coin with Martian dust
This coin denominations of one cent is attached to the board and serves as a rover Kyuriositi calibration target for its cameras. During the period of the mission it is completely covered with Martian dust.
That's coin looked two years ago - in August 2011 before sending a rover to Mars:
Source: www.universetoday.com
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That's coin looked two years ago - in August 2011 before sending a rover to Mars:
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Source: www.universetoday.com