The Mars Curiosity rover has sent back many interesting photos. Some were just rocks, others contained dead pixels mistook for something else but there are some that have remained unexplained. A recent batch of eight photos shows what appears to be a shining orb moving around the martian surface.
Its movements seem to follow a controlled pattern and the fact that it changes its position in the field of view suggests it is not a dead pixel or an image artifact.
As always, NASA will provide an official explanation. It’s everybody’s choice whether to believe it or not.