In ten years, aeronautics has made great technical progress. At the same time, world aviation has never experienced such growth, with the number of passengers carried doubling. Air transport is therefore changing and becoming more and more environmentally responsible. Here is a selection of ten moments, events that have had a long-term impact on aviation. Air transport has expanded rapidly, reaching emerging and developing countries in Asia and Africa. The number of passengers carried has been increasing by about 4% each year. 2010: the eruption of the Eyjafjöll volcano The eruption and the large plume of ash seen from an aircraft It all starts with the eruption of an Icelandic volcano, Eyjafjöll , which has been dormant since 1823. On March 20, 2010, the volcano erupted, causing a lava flow accompanied by a large plume of ash. In April, air traffic is then interrupted for safety reasons. The particles in the cloud can suffocate and seriously damage aircraft engines. In total, nearly