Tuesday, 17 March 2026
 10:00-10:30Welcome and logistics
 10:30-11:00Ses 1 ObsIvanovaDust properties, morphology and spectral changes of the interstellar comet 3I/ATLAS
 11:00-11:25Coffee break
 11:25-11:50Ses 2 ModSkorovSublimation-driven reworking of porous two-component granular layers
 11:50-12:25Ses 2 ModKossackiEjection of dust grains
 12:25-12:40Discussion
 12:40-14:00Lunch break
 14:00-14:25Ses 3 LabMeierProperties of ejected granular water-ice particles
 14:25-14:50Ses 3 LabMuthigHigh-resolution optical observation of water ice activity
 14:50-15:15Ses 3 LabTimpeNew CoPhyLab experiments using vertical ice/dust samples to investigate particle activity
 15:15-15:40Coffee break
 15:40-16:05Ses 4 ObsMüllerH₃O⁺ and D/H in dust related outgassing – ROSINA/DFMS neutral mode spectra and their implications
 16:05-16:30Ses 4 ObsRinaldiDust and Gas activity of long-period comet C/2023 A3 (Tsuchinshan-ATLAS)
 16:30-16:55Ses 4 ObsVoitkoDust coma of comet C/2020 V2 (ZTF) in the first half of 2022
 16:55 -Discussion and tour of the Astrolab facility @ IWF
 
 
Wednesday, 18 March 2026
 09:30-09:55Ses 5 LabKnoopImproving the outcome of Cone Penetration Tests to investigate sample hardening
 09:55-10:20Ses 5 LabKreuzigA new simulation experiment for the formation of fluffy dust and possible applications to cometary observations
 10:20-10:45Coffee break
 10:45-11:15Ses 6 ObsGüttler/DepenbrockDepenbrock et al. “Resolved Dust Particles in the WAC Empty Filter/Güttler et al. “Vertical gas transport in cometary surface layers
 11:15-11:40Ses 6 ObsKolokolovaPolarimetric Signatures of Changes in Comet 67P
 11:40-12:05Ses 6 ObsShubinaPost-perihelion activity of comet C/2022 E3 (ZTF)
 12:05-12:30Discussion
 12:30-14:00Lunch break
 14:00-14:25Ses 7 Obs
Online		FulleHave most Oort Cloud comets a trail of mininuclei
 14:25-14:50Ses 7 ObsHänniVolatile organics in comet 67P’s dusty coma – review and outlook
 14:50-15:15Ses 7 ObsRichterActive asteroid P/2021 L4: Re-activation of asteroids
 15:15-15:40Coffee break
 15:40-16:05Ses 8 ModWoitkeFormation of Primitive Materials in the Early Solar Nebula
 16:05-16:30Ses 8 ModSkorovUncertainty Analysis in Modelling Gas Mass Flow and Recoil Force Generated by Sublimation
 16:30-16:55Ses 8 ModMacherKnudsen gas diffusion through layers of dust packing
 16:55-17:20Ses 8 ModZivithal1D modelling of a hierarchical porous comet surface: H2O/CO2 sublimation and dust removal
 17:20-17:30Break
 17:30-18:00PanelGüttler, Skorov, MarkanenChallenges in dust modelling
 
 19:30 -Social Dinner at "Der Steirer"
 
 
Thursday, 19 March 2026
 09:30-09:55Ses 9 OnlineCambianciMulti-instrument characterization of the dust ejection mechanism in comet 67P/Churyumov–Gerasimenko
 09:55-10:20Ses 9 OnlineZakharovParametric study of a dusty-gas coma with active dust
 10:20-10:45Ses 9 OnlineFrayThe composition of the dust particles of comet 67P/Churyumov-Gerasimenko suggests a pre-accretional irradiation of the dust constituents
 10:45-11:10Coffee break
 11:10-11:35Ses 10 ModMarkanenLight scattering by structurally diverse aggregates
 11:35-12:00Ses 10 ModSchuckartInvestigating surface morphology changes on 67P/Churyumov-Gerasimenko with MoCSI
 12:00-12:25Ses 10 ModAttree67P’s water activity pattern explained with a microphysics model
 12:25-13:00Concluding remarks and next meeting