Noctilucent clouds

Noctilucent clouds above Wuppertal Ronsdorf at 11:15 pm (Foto: Andrea Rau, 17.06.2019)

Noctilucent clouds above Wuppertal Ronsdorf at 11:15 pm (Foto: Andrea Rau, 17.06.2019)
The Atmosphere

Barrow (Alaska)

Hurricane Francis on August 27, 2004 (photo taken from the ISS by Mike Fincke)
Field Studies

View from research aircraft HALO during the TECHNO Mission

Air polution in Santiago de Chile
Laboratory Measurements

Photo Flux Reactor

Isotope Ratio Mass Spectrometer