Love seeing these photos from the Mars rovers. This photo is interesting! Wonder what created the great disparity in the rocks. The ones on the left looking large blocky, windblown and exposed while on the right I see squarish flat stones with sharp edges littering the hill with some exposed older (?) rocks. Got to love the geologic dynamics! http://apod.nasa.gov/apod/image/1402/dingogap_curiositybouric_2288.jpg Equipped with his five senses, man explores the universe around him and calls the adventure Science.   - Edwin Powell Hubble