On October 23, 2017, a new photograph was sent to the NASA archives from Mars, which shows a dark blue, almost black stone of a rather strange shape. It looks a lot like a robot head, and for Star Wars fans it will remind you of Darth Vader's head.
It is easy to make out the "eye sockets" and the "nose" area in the middle on the stone. Below is something like a mouth with "teeth". It's not very similar to natural education. It can be a robot head or a sculpture head, only very small. This pebble is less than three centimeters wide in size and, judging by the photo, it accidentally rolled out when the rover left a track on the surface.
This is not the first "head" found in photographs of Mars, and even the tiny "aliens" themselves or something similar to them were previously found in Martian photographs.
Tiny Martians from earlier pictures
Promotional video:
In the same picture with the “head” just below, near the left corner, you can find a flat stone, on which two indentations are visible, similar to foot prints. Is it possible that they were left by the same “robot” that owns the “head”?