Crater in Nighttime IR (Released 6 December 2004)

This nighttime IR image is of a small crater. Note the bright and dark portions of it's ejecta blanket. With ballistic em- placement of ejecta, larger(heavier) material falls closer to the crater rim than smaller material. This is clearly repre- sented in the nighttime IR, where rockier material is warmer/ brighter and finer material is darker/cooler.