The latest images from the right mast cam clearly show structures on Mars.

Despite NASA has blurred out the landscape in the background, you can see a pyramid-like structure.

On this pyramid is a geoglyph engraved what looks like an ancient alien, symbolizing an astronaut?

A petroglyph, similar to ancient artwork found on cave and mountain walls in many parts of the world, symbolizes ancient astronauts.

This geoglyph is evidence that ancient aliens may have lived on planet Mars before they came to planet Earth?

You can find original NASA pictures here and check it:

Picture 1

Picture 2

For more info about Geoglyphs here on Earth read: The Enigmatic Palpa Lines Of Peru Stranger Than Nazca Lines

Though not as famous as the Nazca Lines and Geoglyphs, those at nearby Palpa are perhaps equally intriguing. Made by the Paracas culture possibly as much as 1000 years prior to the Nazca Lines, there are more than 1600 Palpa Lines and Geoglyphs (pic bellow).