Time-lapse video: In Europe´s Baltic and Northern Sea regions the sky never gets entirely dark from May to July. TWAN photographer Bernd Proeschold was lucky to capture scattered clouds drifting through the midnight dawn and creating a spectacular sky at sunrise. After midnight also some Noctilucent Clouds (NLC) show up in the scenery. The noctilucent or night-shining clouds lie near the edge of space, reflecting sunlight from about 80 kilometers above Earth's surface. Usually spotted above the poles in summer, they are now seen with increasing frequency farther from the poles. The sand dune in the foreground is the famous Rubjerg Knude shifting dune. The lighthouse on its top was shut down in 1968 when it was obscured by sand. Bernd Proeschold/Sternstunden.net

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