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![Image of the Pioneer plaque](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Pioneer10-plaque.jpg/300px-Pioneer10-plaque.jpg)
NASA image of Pioneer 10's famed Pioneer plaque, a pictorial message to any extraterrestrial being that may intercept the probe. It features a design engraved into a gold-anodized aluminum plate, 152 by 229 millimeters (6 by 9 inches), attached to the spacecraft's antenna support struts to help shield it from erosion by interstellar dust.