What is Space Weather?

Space weather is the physical and phenomenological state of natural space environments. The associated discipline aims, through observation, monitoring, analysis and modelling, at understanding and predicting the state of the sun, the interplanetary and planetary environments, and the solar and non-solar driven perturbations that affect them; and also at forecasting and nowcasting the possible impacts on biological and technological systems.'

La definición anterior corresponde a la traducción del término inglés 'space weather'. Tanto la definición inglesa como su traducción al español fueron resultado de la Acción COST 724 ('ver extracto del Final Report'). La definición inglesa fue aprobada oficialmente en 2007 por los representantes de 23 paises. La traducción española fue realizada por los científicos españoles participantes en dicha Acción COST. Desde entonces la definición inglesa se ha traducido a numerosos idiomas por científicos de todo el mundo.

On November 2013, during the 10th European Space Weather Week, the city of Antwerpen agreed to have it printed in a big poster with the translation into 56 languages in front of the Central Railway Station during 5 days, so that thousands of people could see it.

This initiative, called the ('Wall of Peace'), was supported by the Office for Outer Space Affairs of the United Nations. Thanks to the Science, all these languages and all these cultures are still telling the same thing. They gather in this definition and, to follow Joseph Rotblat, 'They transcend geographic frontiers and ideological divides'.