WEBVTT FILE 1 00:00:00.866 --> 00:00:04.033 The Moon’s South Pole is a fascinating region to study, 2 00:00:04.033 --> 00:00:08.733 especially when you pay attention to the areas that are in sunlight and darkness over time. 3 00:00:16.833 --> 00:00:20.366 And thanks to NASA’s Lunar Reconnaissance Orbiter, we can zoom in 4 00:00:20.366 --> 00:00:25.100 for an extremely close view of the terrain that shows how the sun shines on the South Pole. 5 00:00:30.800 --> 00:00:34.233 Here, we see how the Moon’s topography creates areas of shadows 6 00:00:34.233 --> 00:00:38.666 over the course of two lunar days, which is equal to two months on Earth. 7 00:00:45.633 --> 00:00:48.600 The flowing dance of sunlight and shadow on the surface 8 00:00:48.600 --> 00:00:53.166 reveals areas that exist in permanent darkness, nearly persistent sunshine, 9 00:00:53.166 --> 00:00:57.600 and others where the balance of light and dark fluctuates thru time. 10 00:01:04.100 --> 00:01:06.133 Studying the shadows at the South Pole 11 00:01:06.133 --> 00:01:09.900 informs scientists about the temperature at and below the surface, 12 00:01:09.900 --> 00:01:13.266 and the possibilities regarding water and other volatiles – 13 00:01:13.266 --> 00:01:17.533 all of which sheds light on what future lunar exploration will entail.