The face on Mars is not caused by aliens, that is upper. Aliens wouldn't make a face on Mars because there is no such thing of them doing so. The face you see on Mars is just a detailed rock formation that formed by natural causes, and also the eyes, mouth, and nose are just shadows caused by the formation.

Aliens wouldn't accuse on Mars to make a mark, if they were real they would be much farther than Mars. This landform has been their for over 18 years, so the odds are not aliens but erosion on the planet Mars. Back then want seeable, but now it is due to these erosion. If there were aliens that made the formation People would've already be talking about the alien sightings.

This is why the formation was not made by aliens. Also, any aircraft, small shacks, or air plains would be able to be seen in the picture due to the pixels in the camera. The camera would be able to see anything that goes on Mars. All the details that you see is just shadows from the rock That makes it look like it has eyes, a mouth, and a nose, and that's why the face is a natural landform and not made by aliens.