National Geographic : 1964 Nov
(C) N.G.S . Tension grips Mrs. Edna Haggard, JPL secretary, as she listens to Ranger reports coming over a loudspeaker. 480 MILES Dark dry "sea" surrounds brighter uplands. The city of Los Angeles could fit within the rim of Lubiniezky Crater (lower center). Consider the rain, the eons-long relentless down pour that causes erosion, change, transformation. On the earth the rain is water. Rain feeds rivers which, at their mightiest, can cut such glories as the Grand Canyon. Freez ing rain breaks rocks; packed snow and ice form glaciers that can gouge beds for such majestic waters as the Great Lakes. On the moon the rain is hardened matter. Space debris, crashing in at terrific speeds, buffets the tortured surface, cracks and scatters the rocks, and digs holes small as a pinhead or big as Hudson Bay. Earth's water erosion usually heals the gaping wounds inflicted by attacks from space. But the moon forever reflects the awesome shattering of celestial barrage. Circles enclose the same area in all pictures. 34 MILES Shallow, elongated secondary craters reflect the glancing strike of fragments thrown by impact of meteorites elsewhere on the moon.