The Register 
Oct 9, 2012
Martian nuclear tank Curiosity has spotted a bright metallic-looking object sparkling on the planet’s surface as it went in for its first soil sample, which could be a piece of the robot rover itself.
The rover was scooping sand for the first time with its robotic arm when its camera picked up on the object.
NASA boffins have put a stop to any further Curiosity activity while the rover takes extra pictures to try to figure out what the mysterious, but tiny, thing could be.
Curiosity is set up to take soil samples so that it can run chemical and mineralogical tests and discover what makes up the Red Planet’s surface.