Tuesday, January 5
11:00 am - 12:15 pm	Chemical Physics Seminar Online Event Free Range Frequency Combs: mobilizing frequency comb laser technology from hypersonic research to atmospheric sensing Greg Rieker, Associate Professor, Mechanical Engineering, University of Colorado- Boulder,
12:00 pm - 1:00 pm	Mathematics Colloquium Online Event The geometry and topology of scalar curvature Chao Li, Department of Mathematics, Princeton University,
3:00 pm - 3:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Radon-like Transforms, Geometric Measures, and Invariant Theory Philip T. Gressman, Department of Mathematics, University of Pennsylvania,
4:00 pm - 4:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Extreme values of the argument of the zeta function Alexander Dobner, Department of Mathematics, UCLA,

Wednesday, January 6
1:30 pm - 2:30 pm	High Energy Theory Informal Seminar Online Event A violation of global symmetries from replica wormholes and the fate of black hole remnants Luca Iliesiu, Stanford University,
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Cosmic Rays in Multiphase Gas Ellen Zweibel, W. L. Kraushaar Professor of Astronomy and Physics, University of Wisconsin-Madison,
4:00 pm - 5:45 pm	▶︎POSTPONED: Diverse Minds Seminar Online Event The Hierarchy of Knowledge in Machine Learning & Related Fields and Its Consequences Dr. Timnit Gebru, Research Scientist, Artificial Intelligence, Black in AI,

Thursday, January 7
9:00 am - 9:55 am	Analysis Seminar Online Event Quantitative stability for minimizing Yamabe metrics Robin Neumayer, Department of Mathematics, Northwestern University,
12:00 pm - 1:00 pm	Mathematics Colloquium Online Event Actions of Homeo and Diffeo groups on manifolds Lei Chen, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Physics Colloquium Online Event Enabling novel light phenomena at the subwavelength scale Marin Soljačić, MIT,

Friday, January 8
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Orthogonal group and higher categorical adjoints David Ayala, Department of Mathematical Sciences, Montana State University,
4:00 pm - 5:00 pm	Math Graduate Student Seminar Online Event Categorical Trace Tamir Hemo, Department of Mathematics, Caltech,

Monday, January 11
12:00 pm - 1:00 pm	Logic Seminar Online Event A new regularity property of the Haar null ideal Zoltán Vidnyánszky, Department of Mathematics, Caltech,
7:30 pm - 9:30 pm	Astronomy on Tap Online Event "The Cosmic Gold Rush" and "The Secret to Building the Biggest Galaxies: Cannibalism" Igor Andreoni, Postdoctoral Fellow, Department of Astronomy, Caltech, Rachel Bezanson, Assistant Professor, Department of Physics and Astronomy, University of Pittsburgh,

Tuesday, January 12
10:00 am - 11:15 am	Chemical Physics Seminar Online Event Nucleation enhancement in new particle formation from the vapor phase and water transport through gas-liquid interfaces in organic aerosols Ruth Signorell, Professor of Physical Chemistry, Department of Chemistry and Applied Bioscience, ETZ Zurich,
12:00 pm - 1:00 pm	Mathematics Colloquium Online Event Thin sets of primes from reductions of abelian varieties and K3 surfaces Yunqing Tang, Laboratoire de Mathématiques d'Orsay, CNRS & Université Paris-Sud,

Wednesday, January 13
1:30 pm - 2:30 pm	High Energy Theory Seminar Online Event Ensemble averages of torus orbifolds Nathan Benjamin, Princeton University,
5:00 pm - 6:00 pm	Watson Lecture - Artificial Intelligence: How it Works and What it Means for the Future Online Event Yisong Yue, Professor of Computing and Mathematical Sciences, Division of Engineering and Applied Science, Caltech,

Thursday, January 14
9:00 am - 9:55 am	Analysis Seminar Online Event Stability of kinks in one-dimensional Klein-Gordon equations Pierre Germain, Courant Institute of Mathematical Sciences, NYU,
11:00 am - 12:00 pm	A Conversation with Zoom Founder and CEO Eric S. Yuan Online Event
4:00 pm - 5:00 pm	Physics Colloquium Online Event Choreographing Quantum Spin Dynamics with Light Monika Schleier-Smith, Stanford University,

Friday, January 15
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event New non-perturbative effects in the gravitational path integral Jordan Cotler, Harvard University,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event Towards realistic post-merger simulations of binary neutron stars with SphericalNR Vassilios Mewes, Postdoctoral Research Associate, Computational Astrophysics, Oak Ridge National Lab,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Links all of whose branched cyclic covers are L-spaces Hannah Turner, Department of Mathematics, UT, Austin,

Tuesday, January 19
3:00 pm - 3:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Stationary random entire functions and related questions Adi Glücksam, Department of Mathematics, University of Toronto,
4:00 pm - 4:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Joints of varieties Yufei Zhao, Department of Mathematics, MIT,

Wednesday, January 20
12:00 pm - 1:00 pm	Astronomy Colloquium Online Event Mergers, magnetars and multi-messengers Stephen Smartt, Professor, Queens University Belfast,
12:00 pm - 1:00 pm	Logic Seminar Online Event Universal minimal flows of homeomorphism groups of high-dimensional manifolds Todor Tsankov, Institut Camille Jordan, Université Claude Bernard – Lyon 1,

Thursday, January 21
9:00 am - 9:55 am	Analysis Seminar Online Event The Robin eigenvalue problem: statistics and arithmetic Zeev Rudnick, School of Mathematical Sciences, Tel-Aviv University,
4:00 pm - 5:00 pm	Physics Colloquium Online Event Neutrino Geoscience: measuring the Earth's neutrino flux and constraining its composition Hiroko Watanabe, Tohoku University,

Friday, January 22
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Quantum Extremal Islands Made Easy Rob Myers, Perimeter Institute,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event A family of 3d steady gradient solitons that are flying wings Yi Lai, Department of Mathematics, UC Berkeley,
4:00 pm - 5:00 pm	Math Graduate Student Seminar Online Event TBA TBA,

Monday, January 25
12:00 pm - 1:00 pm	Logic Seminar Online Event A method for showing Π03 -completeness Vassilios Gregoriades, Department of Mathematics, National Technical University of Athens,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event Generalizing the Double-Copy: Masses and Higher-Derivatives Callum Jones, UCLA,
5:00 pm - 6:00 pm	Webinar: The Ultraviolet Spotlight on Exoplanets Online Event

Wednesday, January 27
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Reverberation mapping black hole accretion flows Erin Kara, Assistant Professor of Physics, Massachusetts Institute of Technology,

Thursday, January 28
9:00 am - 9:55 am	Analysis Seminar Online Event Nonlinear wave equations, the weak null condition, and radiation fields Joseph Keir, Mathematical Institute, University of Oxford,
4:00 pm - 5:00 pm	Physics Colloquium Online Event Predicting the universe today from looking at the past with the Atacama Cosmology Telescope Suzanne Staggs, Princeton University,

Friday, January 29
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Pole-skipping in holographic theories David Vegh, Queen Mary University of London,
11:00 am - 12:00 pm	IQIM Postdoctoral and Graduate Student Seminar Online Event Using Metrological Bounds in Quantum Error Correction Aleksander Kubica, AWS Center for Quantum Computing,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event The Most Distant Quasars in the Universe Feige Wang, Hubble Fellow, Department of Astronomy and Steward Observatory, University of Arizona,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Choosing points on cubic plane curves Weiyan Chen, Yau Mathematical Sciences Center, Tsinghua University,
7:00 pm - 9:00 pm	Stargazing Lecture Online Event An Insider's Look Behind Science Headlines Sarah Blunt, PhD Candidate, Department of Astronomy, Caltech,