Monday, May 3
10:00 am - 11:00 am	High Energy Physics Seminar Online Event Beyond Lorentz's Lamp-post: Positivity Bounds for Cosmology Scott Melville, DAMTP, University of Cambridge,

Tuesday, May 4
10:00 am - 10:50 am	Caltech/UCLA Joint Analysis Seminar Online Event Rigidity results for measurable sets Dorin Bucur, Laboratoire de Mathématiques, Université de Savoie,
11:00 am - 11:50 am	Caltech/UCLA Joint Analysis Seminar Online Event The matrix-weighted Hardy-Littlewood maximal function is unbounded Stefanie Petermichl, Departement de Mathematiques, Universite Paul Sabatier, Toulouse,

Wednesday, May 5
12:00 pm - 1:00 pm	High Energy Theory Seminar Online Event A Finite S-matrix Hofie Hannesdottir, Harvard University,
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Black Hole Mass Measurement with ALMA Aaron Barth, Professor, Department of Physics and Astronomy, University of California, Irvine,

Thursday, May 6
12:00 pm - 1:00 pm	Diverse Minds Seminar Online Event More than one sensorial modality to do mainstream science in astronomy? Dr. Wanda Díaz-Merced, Astronomer,
12:00 pm - 1:00 pm	High Energy Physics Seminar Online Event Nonstandard thermal histories and the small-scale matter power spectrum Jessie Shelton, UIUC,
4:00 pm - 5:00 pm	Physics Colloquium Online Event The Cosmological Bootstrap Daniel Baumann, University of Amsterdam,
4:00 pm - 5:00 pm	Number Theory Seminar Online Event Sarnak's density hypothesis in horizontal families Mikołaj Frączyk, Department of Mathematics, The University of Chicago,

Friday, May 7
9:00 am - 10:00 am	TAPIR Seminar Online Event The cycle of matter in the magnetized interstellar medium as revealed by machine vision Juan Diego Soler, Postdoctoral Fellow, Dept of Planet and Star Formation, MPIA Heidelberg,
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Flatspace Holography: Celestial Amplitudes and Symmetries Monica Pate, Harvard University,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Definite surfaces, plumbing, and Tait's conjectures Thomas Kindred, Department of Mathematics, University of Nebraska-Lincoln,

Monday, May 10
12:00 pm - 1:00 pm	Logic Seminar Online Event Arcs, knots, and convex embeddability Luca Motto Ros, Mathematics Department, University of Turin,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event Cosmology at the end of the world Brian Swingle, Brandeis University,
7:30 pm - 9:30 pm	Astronomy on Tap Online Event "Lunar Radio Telescope" and "SOFIA Telescope Aboard a 747 Jet" Saptarshi Bandyopadhyay, Robotics Technologist, Jet Propulsion Laboratory, Sabrina Pakzad, Mission Operations Specialist, NASA SOFIA Telescope,

Wednesday, May 12
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Don't Fear the Spiders: New Insights from Redback Millisecond Pulsars Jay Strader, Associate Professor, Department of Physics and Astronomy, Michigan State University,
5:00 pm - 6:00 pm	Watson Lecture - From the Soil to the Clinic: How Infection-Causing Microbes Thrive Without Oxygen Online Event Dianne K. Newman, Gordon M. Binder/Amgen Professor of Biology and Geobiology and Executive Officer for Molecular Biology, Division of Biology and Biological Engineering, Caltech,

Thursday, May 13
4:00 pm - 5:00 pm	Physics Colloquium Online Event Searching for Dark Matter Interactions throughout Cosmic History Kim Boddy, UT Austin,

Friday, May 14
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Worldsheet correlators in AdS3 Lorenz Eberhardt, Institute for Advanced Study,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event Ultra-High-Energy Cosmic Rays and Neutrinos from relativistic jets of Active Galactic Nuclei Rostom Mbarek, Graduate Student, Department of Astronomy and Astrophysics, The University of Chicago,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Khovanov homology via Floer theory of the 4-punctured sphere Artem Kotelskiy, Department of Mathematics, Indiana University Bloomington,

Monday, May 17
12:00 pm - 1:00 pm	Logic Seminar Online Event Orbit equivalence and wreath products Robin Tucker-Drob, Department of Mathematics, Texas A&M University,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event Thermal Squeezeout of Dark Matter Pouya Asadi, MIT,
7:30 pm - 9:30 pm	Astronomy on Tap (Español) Online Event "Mini Agujeros Negros" and "Enanas Marrones" Lluis Mas-Ribas, Postdoctoral Fellow, Jet Propulsion Laboratory, Daniella Bardalez Gagliuffi, Postdoctoral Fellow, American Museum of Natural History,

Tuesday, May 18
3:00 pm - 3:50 pm	Caltech/UCLA Joint Analysis Seminar Online Event Tiling the integers with translates of one tile: the Coven-Meyerowitz tiling conditions for three prime factors Izabella Laba, Department of Mathematics, University of British Columbia,
4:00 pm - 4:50 pm	Caltech/UCLA Joint Analysis Seminar Online Event Energy of the Dilute Bose Gas in 3D Søren Fournais, Department of Mathematics, Aarhus University,

Wednesday, May 19
1:30 pm - 2:30 pm	High Energy Theory Seminar Online Event Obstructions to Gapped Boundaries for (2+1)d TQFT Justin Kaidi, SCGP,
4:00 pm - 5:00 pm	Astronomy Colloquium Studying the Universe with Gravitational Waves: From Neutron Stars to Tests of Gravity Katerina Chatziioannou, Assistant Professor of Physics, Division of Physics, Mathematics and Astronomy, California Institute of Technology,
7:00 pm - 8:00 pm	A Conversation with Alibaba Chairman and CEO Daniel Zhang Online Event

Thursday, May 20
4:00 pm - 5:00 pm	Physics Colloquium Online Event Black Holes - Nature or Nurture?: The Roles of Rotation and Accretion in Powering Cosmic Sources Roger Blandford, Stanford University,

Friday, May 21
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event From AdS/CFT to soft theorems in flat space Eliot Hijano, Princeton University,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event Synchrotron Boilers in Embryonic Neutron-Star Wind Nebulae Kazumi Kashiyama, Assistant Professor, School of Science, University of Tokyo,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Ancient solutions to mean curvature flow Theodora Bourni, Department of Mathematics, University of Tennessee, Knoxville,
7:00 pm - 9:00 pm	Stargazing Lecture Online Event The Surprising World of Pulsars Amruta Jaodand, Postdoctoral Fellow, Department of Astronomy, Caltech,

Monday, May 24
12:00 pm - 1:00 pm	Logic Seminar Online Event Borel factor maps and embeddings between actions of Z^d Spencer Unger, Department of Mathematics, University of Toronto,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event Two short tales of axions JiJi Fan, Brown University,

Wednesday, May 26
4:00 pm - 5:00 pm	Astronomy Colloquium - Neugebauer Lecture Online Event Our Galactic Center: A Unique Laboratory for the Physics & Astrophysics of Black Holes Andrea Ghez, Lauren B. Leichtman and Arthur E. Levine Professor of Astrophysics, Department of Physics and Astronomy, University of California, Los Angeles,

Thursday, May 27
4:00 pm - 5:00 pm	Physics Colloquium Online Event Cavity acoustodynamics: insight into quantum noise in materials and opportunities for quantum computing Oskar Painter, Caltech,

Friday, May 28
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Cosmology from confinement Mark van Raamsdonk, University of British Columbia,
11:00 am - 12:00 pm	IQIM Postdoctoral and Graduate Student Seminar Online Event Quantum Weak Coin Flipping—where weakness is a virtue Atul Singh Arora, Postdoctoral Scholar, Vidick Group,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event The extreme-mass-ratio-inspiral problem Alvin Chua, Postdoctoral Scholar, TAPIR, Caltech,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Lens space surgeries, lattices, and the Poincaré homology sphere Jacob Caudell, Mathematics Department, Boston College,