Exploring the beauty of our planet, this timelapse video was created with images ESA astronaut Alexander Gerst took while on the International Space Station.  As part of the International Space Station Expedition 40 crew, Gerst has been been spending five and a half months living and working on the ISS for his Blue Dot mission.  The artistic effects of the light trails from stars and cities at night are created by superimposing the individual images and fading them out slowly.