In 2020, motivated by the celebration of 50 years of publication of the Journal of Aerosol Science, the JAS editors, editorial advisory board, and publisher elected to establish the Journal of Aerosol Science Excellence in Research (JASER) Award. It is intended to acknowledge the quality, originality, and depth of contribution in aerosol research (as defined by scope of the Journal of Aerosol Science) over quantity and acceptance by specific Journals. The JASER Award may be bestowed for a single paper or collection of related papers of particular significance to Aerosol Science.