Wednesday, September 2
12:00 pm - 1:00 pm	Logic Seminar Online Event A dichotomy for Polish modules Joshua Frisch, Department of Mathematics, Caltech,
5:00 pm - 6:00 pm	Webinar: Robotic Exploration of Titan with Dragonfly - An Overview of the Lander Mobility System Online Event

Friday, September 4
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Dispersive CFT Sum Rules Dalimil Mazac, Simons Center,
7:00 pm - 9:00 pm	Stargazing Lecture Online Event The Exceptional Astronomical Discoveries of the Ancient Greeks​ Michael Zhang, PhD Candidate, Department of Astronomy, Caltech,

Tuesday, September 8
1:00 pm - 2:00 pm	IQI Weekly Seminar Online Event The representation theory of the Clifford group, with sundry applications David Gross, Professor of Physics, University of Cologne,

Wednesday, September 9
12:00 pm - 1:00 pm	Logic Seminar Online Event The size of the class of countable sequences of ordinals William Chan, Department of Mathematics, Carnegie Mellon University,

Friday, September 11
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Higgs-confinement phase transitions with fundamental representation matter Srimoyee Sen, Iowa State University,

Monday, September 14
10:00 am - 11:00 am	High Energy Physics Seminar Online Event Precarious Naturalness Daniele Teresi, Università di Pisa,

Tuesday, September 15
2:00 pm - 3:00 pm	IQI Weekly Seminar Online Event Improved thermal area law and quasi-linear time algorithm for quantum Gibbs states Anurag Anshu, Postdoctoral Researcher, Institute for Quantum Computing, Waterloo,

Wednesday, September 16
12:00 pm - 1:00 pm	Logic Seminar Online Event Some complexity results in dynamics and number theory Stephen Jackson, Department of Mathematics, University of North Texas,

Friday, September 18
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event To average or not to average Jan de Boer, University of Amsterdam,

Tuesday, September 22
1:00 pm - 2:00 pm	IQI Weekly Seminar Online Event 1D Noisy Random Circuit Sampling & Experimental Aspects of Bosonic QEC Kyungjoo Noh, Research Scientist, AWS Center for Quantum Computing,

Wednesday, September 23
12:00 pm - 1:00 pm	Logic Seminar Online Event On phase spaces of universal minimal flows of groups with compact normal subgroups Dana Bartošová, Department of Mathematics, University of Florida,

Thursday, September 24
10:00 am - 5:30 pm	Keck Science Meeting 2020 Online Event

Friday, September 25
10:00 am - 4:00 pm	Keck Science Meeting 2020 Online Event
2:00 pm - 3:00 pm	TAPIR Seminar Online Event Application of Machine Learning to Identify Stellar Feedback Duo Xu, Graduate Research Assistant, Department of Astronomy, University of Texas at Austin,

Monday, September 28
10:00 am - 11:00 am	High Energy Physics Seminar Online Event Two- and three-particle scattering amplitudes from lattice QCD Fernando Romero-López, University of Valencia,
7:30 pm - 9:30 pm	Astronomy on Tap Online Event "The Planet Nine Hypothesis: An Update" and "Mapping our Solar Neighborhood" Konstantin Batygin, Professor of Planetary Science, Division of Geological and Planetary Sciences, Caltech, Jackie Faherty, Senior Scientist, Department of Astrophysics, American Museum of Natural History,

Wednesday, September 30
12:00 pm - 1:00 pm	Logic Seminar Online Event The Borel structure of quotient spaces Ben Miller, Kurt Gödel Research Center, University of Vienna,
3:00 pm - 4:30 pm	Geometric Representation Theory Learning Seminar Online Event Overview and motivation Tamir Hemo, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event The Commensal Radio Astronomy FAST Survey (CRAFTS) Di Li, Chinese Academy of Sciences,