Christmas on Mars is like most other days on Mars: Dry, cold, and dusty.  However, as the Curiosity rover works its way across the ancient Martian surface, it sees changes in the terrain that are very interesting to investigate.  It’s at 1200 sols (Martian days) of roving around the planet as of Monday, and it continues to make its way to the primary target, Mount Sharp.  a Christmas photo shows how far the rover still has to go, but proves that it still has it’s sights set on the lonely mountain. The rover has travelled far since it’s landing, and...