As part of ESA’s commitment to develop and build satellite missions that push the boundaries of satellite technology and Earth science, four new mission ideas – Cairt, Nitrosat, Seastar and Wivern – have been selected to enter pre-feasibility study and compete to be the eleventh Earth Explorer mission.
Read Full article: https://www.esa.int/Applications/Observing_the_Earth/Future_EO/Earth_Explorers/Four_mission_ideas_to_compete_for_Earth_Explorer_11