A Penny for your Curiosity on Mars - Universe Today
[/caption] NASA’s huge Curiosity Mars Science Lab (MSL) rover is carrying a vintage Lincoln penny along for the long interplanetary journey to Mars – and it’s not to open the first Martian savings account. Scientists will use the century old Lincoln penny – minted back in 1909 – as a modern age calibration target for … Continue reading "A Penny for your Curiosity on Mars"