Impact melt flowed down the wall of Lowell crater forming two lobes when it solidified. The first lobe was breached or overtopped by a second flow in a manner probably similar to lava flows on Earth. LROC NAC M184196652RE, sun is from the upper left and image width is 1000m [NASA/GSFC/Arizona State University].
A small scarp is exposed in this high incidence angle NAC. The area to the east (right) of the scarp is raised relative to the area on the west (left). LROC NAC M177792062L, image width is 610 m [NASA/GSFC/Arizona State University].
Grooved surface created in an instant by an impact event. The linear pattern is radially symmetric around the parent crater; the parent crater must be very young as very few craters dot the ejecta blanket! LROC NAC M171788458RE, image width is 650m [NASA/GSFC/Arizona State University].