12 October 2004
Although one might argue that most of the "i" is missing, and part of the "h" has been eroded away, this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows light-toned sedimentary rock outcrops in northern Sinus Meridiani that almost seem to spell out the word, "hi." This natural graffiti is all that remains of a suite of sedimentary rock that once covered the area shown here. The 400 meter scale bar is about 437 yards long. The features are located near 1.8°N, 357.2°W. Sunlight illuminates the scene from the upper left.