1 00:00:00,000 --> 00:00:10,790 silence 2 00:00:10,810 --> 00:00:12,530 music 3 00:00:12,550 --> 00:00:17,690 Lunar Reconnaissance Orbiter's wide angle camera, or WAC, is creating a photographic atlas of the entire moon. 4 00:00:17,710 --> 00:00:20,260 By stitching together thousands of separate images 5 00:00:20,280 --> 00:00:24,000 scientists can create a global catalog of the mountains, craters, and rilles, 6 00:00:24,020 --> 00:00:28,050 like those seen here, near the landing site of Apollo 15. 7 00:00:28,070 --> 00:00:31,480 Color and contrast in WAC images give us clues about the chemical makeup of the lunar soil. 8 00:00:31,500 --> 00:00:35,480 The sharp border between the Seas of Serenity and Tranquility, for example, is probably 9 00:00:35,500 --> 00:00:39,260 caused by differing amounts of titanium. 10 00:00:39,280 --> 00:00:43,650 Crater shapes reveal their ages. These three craters are like a time-lapse photo, 11 00:00:43,670 --> 00:00:51,070 from the youngest at the top, with sharp, well-defined features, to the oldest at the bottom, nearly erased by time. 12 00:00:51,090 --> 00:00:56,380 With the wide angle images from LRO, we can improve our understanding of our nearest neighbor in the solar system. 13 00:00:56,400 --> 00:01:05,209 music 14 00:01:05,230 --> 00:01:17,670 beeping