The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
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Nitrogen oxide emissions for the South African Highveld region. The grey outline indicates the densely populated Gauteng province, containing the cities of Johannesburg and Pretoria. Blue circles indicate the location of coal-fired power stations, important hot spots of nitrogen oxide emissions. The upper panel shows the emission strength of the model-based emission inventory, based on 2008 data. The lower panel shows the emission estimates from the spaceborne OMI instrument for 2009–10. The use of satellite data improves the identification of the emission hot spots.