♦Nasa Commemorative Coin, Mars Exploration Science Laboratory mission, Curiosity Rover launched Nov. 26, 2011 and landed on Mars on Aug. 5, 2012 ♦For every collector, collectible enthusiast, scientist, & home decoration collection souvenir present ♦It is a very beautiful strong coin, made from copper and placed in a protective capsule ♦It measures approx. 45mm in diameter, weight is approx. 35 grams