This feature from NASA Mars Reconnaissance Orbiter looks like a heart. It is located south of Ascraeus Mons, which is a large volcano within the Tharsis volcanic plateau, making it extremely likely that this feature was formed by a volcanic process.
This feature from NASA Mars Reconnaissance Orbiter looks like a heart. It is located south of Ascraeus Mons, which is a large volcano within the Tharsis volcanic plateau, making it extremely likely that this feature was formed by a volcanic process.