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Ongoing

9:00am – 11/6 12:00pm

2027 Child Care Assistance Program (CCAP)

Internal Event

12:00am – 11/3 11:59pm

Midterm Examination Period

Academic

Friday, October 30th, 2026

9:00am – 4:00pm

CCE Trick-or-Treat Meet and Greet

12:00pm – 1:00pm

Info Session: Undergrad Certificate in University Teaching and Learning

Center for Student Services 360 (Workshop Space)

12:00pm – 1:00pm

IQIM Postdoctoral and Graduate Student Seminar

Proofs of thermalization and complexity growth in many-body Hamiltonian dynamics

Saúl Pilatowsky-Cameo, MIT,

12:00pm – 1:00pm

Seismo Lab Seminar

South Mudd 254

Revisiting Apollo Seismology: Lunar Crustal Tectonics and Near-Surface Heterogeneity

Dr. Jingchuan Wang, Postdoctoral Scholar Research Associate in Geophysics at the California Institute of Technology (Caltech), Seismo Lab, Caltech,

1:00pm – 10/31 4:00pm

Flagan Symposium

Chen 100

,

2:00pm – 3:00pm

TAPIR Seminar

Online and In-Person Event

Black Hole Encounters Near the Speed of Light

Hengrui Zhu, Graduate Student, Department of Physics, Princeton University,

2:00pm – 4:00pm

Trick-or-Treat at the Deans' Office

Center for Student Services, 2nd Floor, Common Area

Internal Event

3:00pm – 4:00pm

Geometry & Topology Seminar

Linde Hall 387

Tobias Ekholm, Professor, Department of Mathematics, Uppsala University,

4:00pm – 5:00pm

Special Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Deciphering the gut microbiome with chemistry

Emily P. Balskus, Thomas Dudley Cabot Professor of Chemistry, Harvard University,

Saturday, October 31st, 2026

11:00am – 1:00pm

Men's Soccer vs. Occidental

North Athletic Field

11:00am – 12:30pm

Men's Water Polo vs. Pomona-Pitzer

Braun Athletic Center, Pool

4:00pm – 6:00pm

Women's Volleyball vs. Whittier

Braun Gym

Sunday, November 1st, 2026

2:00pm – 4:00pm

Problem Set Workshop - Ma 1a

Internal Event

Monday, November 2nd, 2026

8:15am – 12:30pm

KISS Short Course - Bridging Exoplanet and Solar System Science

Cahill, Hameetman Auditorium

Public Event

10:00am – 12:00pm

Transforming Your Research Into Teaching (TYRIT) Postdocs Only

Center for Student Services 360 (Workshop Space)

1:30pm – 2:30pm

High Energy Theory Seminar

Online and In-Person Event

Liberation in the Heavy Limit

Gordon Rogelberg, Yale University,

4:00pm – 5:00pm

Astronomy Tea Talk

Cahill 370

Revealing the hidden population of wandering massive black holes

Itai Sfaradi, Postdoc, UC Berkeley,

4:00pm – 5:00pm

Geological and Planetary Sciences Seminar

Arms 155 (Robert P. Sharp Lecture Hall)

"What powered the growth of 2026 super El Niño?"

Shang-Ping Xie, Professor of Physical Oceanography and Climate Sciences, Scripps Institution of Oceanography, University of California, San Diego,

4:00pm – 5:00pm

H.B. Keller Colloquium

Annenberg 105

Can Diffusion Models Support Solutions of Inverse Problems?

Nisha Chandramoorthy, Assistant Professor, Department of Statistics, The University of Chicago,

4:00pm – 5:00pm

Quantum Matter Seminar

East Bridge 114

Chiral Magnetoelectric Dynamics in a van der Waals Multiferroic

Edoardo Baldini, Assistant Professor of Physics, The University of Texas at Austin,

8:00pm – 10:00pm

Problem Set Workshop - Ph 1a

Internal Event

Tuesday, November 3rd, 2026

11:00am – 12:00pm

PhD Thesis Defense

Broad 100

Converting quantitative sequencing data to a universal and timeless format for AI model training and deployment

Matthew Cooper, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,

12:00pm – 1:00pm

Job Market Seminar

Baxter B125

Strategic Complexity in Decomposed Games

Yu Hsiang (Sean) Wang, Graduate Student, Division of the Humanities and Social Sciences, Caltech,

1:00pm – 4:00pm

Dare Mighty Things: Caltech JPL Archival Exhibition

Beckman Institute 131

Public Event

2:30pm – 4:30pm

Thesis Defense - Judah Bates, Goentoro Lab (BE)

Broad 100

A bacterium promotes partial limb regrowth in Drosophila

3:00pm – 4:00pm

Year-Long Course Design Workshop Series

Center for Student Services 360 (Workshop Space)

4:00pm – 5:00pm

BBE Division Seminar - Mustafa Mir

Chen 100

A dynamic single molecule view of gene regulation and nuclear organization

Mustafa Mir, Assistant Professor of Cell and Developmental Biology, University of Pennsylvania,

4:00pm – 5:00pm

Charles R. DePrima Memorial Lecture in Mathematics

Linde Hall 310

What is a Mock Theta Function?

Amanda Folsom, Visiting Professor of Mathematics, Department of Mathematics, Caltech,

4:00pm – 5:00pm

Chemical Physics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)

Coherent Nonlinear Magnonics: Energy Transfer and Wave Mixing Between Collective Spin Excitations

Edoardo Baldini, Assistant Professor, Department of Physics, The University of Texas at Austin,

4:00pm – 5:00pm

DIX Planetary Science Seminar

South Mudd 365

4:00pm – 5:00pm

Ulric B. and Evelyn L. Bray Social Sciences Seminar

Baxter B125

Forecast Errors and Forecast Sufficiency Under Ambiguity

Ignacio Esponda, Department Vice Chair and Professor of Economics, UC Santa Barabara,

7:00pm – 10:00pm

Election Night Watch Party

Avery Courtyard

7:00pm – 8:00pm

SURF Information Session | For Caltech Undergraduates

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Internal Event

Wednesday, November 4th, 2026

All Day

Styrofoam Recycling Drop Off Day

12:00pm – 1:00pm

Caregiving with Older Adults: Balancing Empowerment & Protection

Online Event

Internal Event

12:00pm – 1:00pm

Seismo Lab Brown Bag Seminar

South Mudd 254

Zhen Li, Caltech,

12:00pm – 1:00pm

Study Abroad application info session #1

Internal Event

1:00pm – 2:00pm

PhD Thesis Defense

South Mudd 365

Oxidation Products as Diagnostics of Emissions and Photochemistry Across East and Southeast Asia

Katherine Ball, Graduate Student, Chemical Engineering, California Institute of Technology,

3:00pm – 5:00pm

Biosafety - Comprehensive Training

Online Event

4:00pm – 5:00pm

Astronomy Colloquium

Cahill, Hameetman Auditorium

Towards a Full Picture of Massive Stars in the First Gigayear

Peter Senchyna, Astronomer, Carnegie Science,

4:00pm – 5:00pm

Environmental Science and Engineering Seminar

South Mudd 365

Forest Degradation in the Brazilian Amazon

Michael Keller, Distinguished Visiting Scientist at JPL,

4:00pm – 5:00pm

Organic Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Total Synthesis of Quinone-related Natural Products: Chemistry of Redox Reaction of Quinones

Yoshio Ando, Associate Professor, Department of Chemistry, Institute of Science Tokyo,

Internal Event

7:30pm – 8:30pm

Watson Lecture - Katie Bouman: Illuminating the Hidden Universe with Physics and AI

Beckman Auditorium

Katie Bouman, associate professor of computing and mathematical sciences, electrical engineering and astronomy; Rosenberg Scholar; Heritage Medical Research Institute Investigator,

Public Event

8:00pm – 10:00pm

Problem Set Workshop - Ch 1a

Internal Event

Thursday, November 5th, 2026

10:00am – 11:00am

Medical Engineering Special Seminar Series, Frank Sun

Annenberg 105

Nature Sensors: Connecting the Global Sensing Community

Dr. Frank Sun, Associate Editor, Nature Sensors,

11:00am – 12:00pm

Mechanical and Civil Engineering Seminar

Gates-Thomas 135

Reasoning Models for Physical AI

Marco Pavone, Professor, Department of Aeronautics and Astronautics, Stanford University and NVIDIA,

12:00pm – 3:00pm

Caltech Bioscience Industry Day 2026

Chen Breezeway

3:00pm – 4:00pm

CFAM (TA) Drop-In Hour

Online Event

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