Benjamin Frandsen, University of Helsinki, Chemistry, Helsinki, Finland; Tampere University, Aerosol Physics, Tampere, Finland, Robert Skog, University of Helsinki, Department of Chemistry, Helsinki, Finland, Wen Chao, JPL/NASA/Caltech, Pasadena, United States, Gregory Jones, California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, United States, Kayla Pham, Columbia University of New York, New York, United States, Franklin Perry Mills, Australian National University, Canberra, ACT, Australia, Mitchio Okumura, California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, CA, United States, Mads Sulbaek Andersen, California State University Northridge, Northridge, United States, Carl Percival, NASA Jet Propulsion Laboratory, Pasadena, United States and Frank Winiberg, University of Leeds, School of Chemistry, Leeds, United Kingdom