  Combining findings from New Horizons' suite of instruments reveals a bimodal
haze particle distribution within Pluto's atmosphere, which haze models have
not been able to reproduce. We employ the photochemical and microphysics
KINAERO model to simulate seasonal cycles and their impact on the haze
distribution. We find that the smaller spherical particle mode can be generated
through photochemistry and coagulation, while the larger aggregate mode are
formed by surface volatile deposits sublimating and subsequently lofting such
particles upwards.
