Monday, April 26
12:00 pm - 1:00 pm	Logic Seminar Online Event A dichotomy for countable unions of smooth Borel equivalence relations Noé de Rancourt, Kurt Gödel Research Center, University of Vienna,
7:30 pm - 9:30 pm	Astronomy on Tap Online Event "The First Stars and Galaxies in the Universe" Evan Nuñez, PhD Candidate, Department of Astronomy, Caltech, Rebecca Larson, PhD Candidate, Department of Astronomy, University of Texas, Austin,

Tuesday, April 27
11:00 am - 12:15 pm	Chemical Physics Seminar Online Event New Theoretical Approaches to Investigate Light-Matter Interactions Pengfei (Frank) Huo, Assistant Professor of Chemistry, Department of Chemistry, University of Rochester,

Wednesday, April 28
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Small But Mighty: The Tiniest White Dwarf and Other Stories Ilaria Caiazzo, Sherman Fairchild Postdoctoral Scholar, Theoretical Astrophysics, California Institute of Technology,

Thursday, April 29
9:00 am - 9:55 am	Analysis Seminar Online Event Wave decay on asymptotically flat spacetimes Peter Hintz, Department of Mathematics, MIT,
12:00 pm - 1:00 pm	Physics Colloquium Online Event New Directions for Light Dark Matter Yonit Hochberg, Hebrew University,

Friday, April 30
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Towards Lefschetz thimbles in sigma models Nikita Nekrasov, SCGP,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Algebraic fibrations of surface-by-surface groups Stefano Vidussi, Department of Mathematics, University of California, Riverside,