The first scientific evidence on Venus of a wind circulation between the equator and the poles, also named meridional wind, was gathered by an international team led by Pedro Machado, of the Instituto de Astrofísica e Ciências do Espaço (IA) and Faculdade de Ciências da Universidade de Lisboa (FCUL). This result was published today in the scientific journal Icarus, a reference publication in the field of Solar System research.