The University of Barcelona, Alumni UB and the winery Torres, together with Barcelona City Council and Transport for London, organise today, Tuesday 21st May, the conference “Fins on cal arribar per reduir la contaminació atmosfèrica?”. The Aula Magna of the UB Historic Building gathers experts on air quality and health and representatives of public administrations and European organizations who discuss pollution levels in big cities, such as Barcelona, London or Copenhagen, and the actions that can be carried out to reduce them. Organizers state that crisis has caused “a reduction of road traffic and indirectly an ‘unreal’ decrease in pollution levels”.
An object about the size of a small boulder has hit the lunar surface in Mare Imbrium. Anyone looking at the Moon at the moment of impact could have seen the explosion--no telescope required. For about one second, the impact site was glowing like a 4th magnitude star.