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The GLORIA airborne demonstrator:
https://gloria.helmholtz.de/
Selection of Earth Explorer 11 candidate missions:
https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Preparing_for_tomorrow/Four_mission_ideas_to_compete_for_Earth_Explorer_11
KIT press release:
https://www.kit.edu/kit/english/pi_2021_055_atmospheric-research-the-cairt-satellite-concept-selected-as-a-candidate-for-earth-explorer-11.php