Curiosity Mars rover's Twitter handle @MarsCuriosity on Thursday posted a photo of a plaque bearing the signatures of Obama, Vice President Joe Biden and other US officials.
"Signed, sealed, delivered. I carried @POTUS's signature to the surface of #Mars. Http://go.Nasa.Gov/2jIeWVU #NASAPast8Years," Curiosity Rover tweeted.
The image was taken by the rover's Mars Hand Lens Imager (MAHLI) during the rover's 44th Martian day on Mars.
The rectangular plaque made of anodized aluminum is located on the front left side of the rover's deck. It was affixed to the rover's deck with four bolts.
Similar plaques with signatures - including those of the sitting president and vice-president - adorn the lander platforms for NASA's Spirit and Opportunity rovers, which landed on Mars in January of 2004.
The main purpose of Curiosity's MAHLI camera is to acquire close-up, high-resolution views of rocks and soil at the rover's Gale Crater field site, NASA said.
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