This animation of wind circulation on Venus is composed of images taken by the Visual and Infrared Thermal Imaging Spectrometer (VIRTIS) on board ESA’s Venus Express between April 2006 and June 2007. The night-side of the planet is at the top in infrared, with the day-side at the bottom. Credit: ESA/VIRTIS/INAF-IASF/Obs. de Paris-LESIA/ Universidad del País Vasco (R.Hueso)