Iris, an element of the ARTES programme, develops a new air-ground communication system for Air Traffic Management (ATM). It is the satellite-based solution for the Single European Sky ATM Research (SESAR) programme. By 2028, Iris will enable full 4D trajectory management over airspaces across the globe and the data link will be the primary means of communications between controllers and cockpit crews. It will help making air travel in Europe more efficient, cost effective, and safer.