A UFO of an almost classical - plate - shape is visible in a picture taken with one of the many cameras of NASA's Mars Science Laboratory Curiosity - the one called the navigation one (Navcam: Right B). It is located to the right along the way.
The object came into the field of view of "Curiosity" - March 31, 2014 (586 Martian day) at 10 hours 8 minutes. It was just illuminated by the rays of the rising sun. It looks like the "plate" is moving very quickly. In the pictures taken earlier and later, she is not.
Another UFO is clearly visible in the picture taken with the "Curiosity" camera located on the body - Front Hazcam. There are eight such chambers. They are black and white, equipped with wide-angle lenses, photographing panoramas, helping to navigate and plot a route.
The UFO appeared directly at the "Curiosity" course - January 5, 2014 (504 Martian days) at 23 hours 26 minutes 37 seconds. In the photo, the object is located slightly to the right and looks like a light cone. And the light cone looks like a rocket exhaust. Or contrail.
UFO filmed by Curiosity in January 2014
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Either a trace, or the exhaust is directed downward. So the object itself is rising? Confirmation that the UFO was moving can be a picture taken with the same camera, but a little later - after 6 minutes 29 seconds. There is no object on it - it flew away.