NASA’s Mars Curiosity Rover has been rolling around the red planet, sending photos back to Earth. But people online reckon they have spotted a Martian crab monster in one of the photos.

Can you spot it?

Image via NASA

Zoom in a bit…

Image via NASA

Is it a Facehugger from ‘Alien’?

Image via Fox

Or the pit monster from ‘Return Of The Jedi’?

Image via Disney

Twitter thinks it's an alien

[via Metro]