mars103109vid1219_Ed_Lomeli640X480BrtCrvALPOtxt

Partial Development of NPC

mars110109vid1238_EdLomeliALPOtxt640X480Shrp

Region at the pole brighter than previous day

mars110609_110709_110809_111309Whole NPC_DanLLewellynTxt+

Day to Day Changes at the NPC at the Start of Spring in the Northern Hemisphere

mars2009_dec04_0730UT_JBoudreau

NPC Split in half by dark linear marking

mars2009dec04redJBoudreau

Animation of dark feature splitting the NPC.