In short, Barkhan is a dune pile in the shape of a moon. It can be given as an example of wind deposition. It is formed by the effect of external forces and occurs by the effect of wind. Barkhan is known as the most common dune form. It is generally convex.
On June 3, 2018, recently, the HiRise team at the University of Arizona, which has partnered with NASA , sunned photos of the unusual Martian pit. NASA's Mars Reconnaissance Orbiter (MRO) has found a Mars scene that resembles the popular video game Pac-Man in the 1980s!