Just because it’s light enough to take pictures outdoors, doesn’t mean the sun is up. Not yet—or not officially—anyway. The one and only sunrise each year at the South Pole is a slow process. Technically, sunrise occurs in a moment, when the top of the sun meets the horizon. But generally, the term refers to a period of time, both before and after the official event, when the sky is becoming gradually brighter (twilight) and the progress of the sun can be followed as it appears over the horizon. Last week at the Pole, frosty objects and equipment were captured under the glow of twilight.