From Twitter https://twitter.com/drsekula: RT @StationCDRKelly: Day 186. Dark pulls its curtain down on a quiet and reflective Earth. #GoodNight from @space_station! #YearInSpace https://twitter.com/StationCDRKelly/status/648998819544207360/photo/1 https://chirp.cooleysekula.net/attachment/3562