Two dark, rimless pits are located to the northwest of Ascraeus Mons in the Tharsis volcanic region of Mars in this image from NASA Mars Reconnaissance Orbiter. They are situated in the midst of a wispy, dark, boomerang-shaped deposit.
Two dark, rimless pits are located to the northwest of Ascraeus Mons in the Tharsis volcanic region of Mars in this image from NASA Mars Reconnaissance Orbiter. They are situated in the midst of a wispy, dark, boomerang-shaped deposit.