Are these our Martian overlords ... or just 'dead pixels' of a camera? Images beamed back from Curiosity lead to talk of UFOs on Mars

Are these our Martian overlords ... or just 'dead pixels' of a camera? Images beamed back from Curiosity lead to talk of UFOs on Mars | Mail Online: "When Curiosity first touched down on Mars, Internet pranksters were quick to mock up photographs of alien life on the alien landscape. But it seems Nasa has itself captured something very strange on camera, including a strange white light dancing across the horizon of the red planet, and four blobs hovering in the sky"