Air and Space Law students from Leiden University on their annual visit to ESA ESTEC. (Photo: Robert Willemsen)

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Students from the International Air Cadet Exchange (IACE) which will become the young pilots of the future in the various Air Forces from around the world. (Photo: Robert Willemsen)

Researchers and students from CERN, the European centre for nuclear research in Switzerland. (Photo: Robert Willemsen)

A group of students and young professionals from Brazil on a tour of the European institutions. (Photo: Robert Willemsen)