Meetings the size of the AAS Winter Meeting are planned years in advance, with hundreds of moving pieces, a multitude of individuals coordinating their schedules to meet, as well as careful coordination with cities large enough to accommodate thousands of people at once. As such, rescheduling is not an option. Due to the late date of the in-person cancellation and the intervening holidays, shifting to a virtual meeting was impossible.
However, the AAS Committee on Meetings is working to move much of the science program to the 240th AAS Summer Meeting and expanding our footprint in Pasadena, CA, 12-16 June 2022.