The Mars Reconnaissance Orbiter (MRO) Context Camera (CTX) has been acquiring 6 meters (19.7 feet) per pixel images of Mars since October 2006. To date, more than 20% of Mars has been covered at this scale, and at least 1% more is added each month. This picture of a crater resembling a “happy face” was acquired on 28 January 2008. The unnamed crater is about 3 kilometers (1.9 miles) across. It is located among the Nereidum Montes, north of the Argyre basin, near 45.1°S, 55.0°W. North is toward the right and sunlight illuminates the scene from the upper right.
Credit: Lunar and Planetary Institute