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Tuesday, April 21st, 2026

3:00pm – 4:00pm

How to Get the Most Out of Your Retirement Income

Online Event

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

Have Fiscal Policy Failures Diminished American Democracy?

Seth Hill, Professor of Political Science, UC San Diego,

5:00pm – 7:30pm

Three Minute Thesis (3MT) Competition 2026

Public Event

Wednesday, April 22nd, 2026

9:30am – 3:00pm

Resource-aware Quantum Benchmarking Symposium

Gates-Thomas 135

Internal Event

11:00am – 12:00pm

High Energy Theory Seminar

Online and In-Person Event

TBA

Mina Himwich, Princeton University,

3:00pm – 4:15pm

Laboratory Safety Orientation Training

Online Event

4:00pm – 5:00pm

Environmental Science and Engineering Seminar

South Mudd 365

TBD

Jamie Hilditch, Stanford University,

4:00pm – 5:00pm

Organic Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Nickel Complexes for Cooperative Catalysis & Mechanistic Insight

C. Rose Kennedy, James P. Wilmot Distinguished Assistant Professor, Department of Chemistry, University of Rochester,

Internal Event

7:30pm – 9:00pm

Movies That Matter's Earth Day Screening: Spectrum of Life

Chen 100

Thursday, April 23rd, 2026

11:00am – 12:00pm

Mechanical and Civil Engineering Seminar

Gates-Thomas 135

Elasto-Plastic Stochasticity: The Role of Atomic Level Fluctuations on Mesoscale Deformation Properties in Complex Alloys

Jaime Marian, Professor, Department of Materials Science and Engineering, University of California, Los Angeles,

4:00pm – 5:00pm

Biochemistry Seminar

Gates Annex B122

Siegfried Musser, Professor, Department of Cell Biology and Genetics, Texas A&M,

4:00pm – 5:00pm

Chemical Engineering Seminar

Spalding Laboratory 106 (Hartley Memorial Seminar Room)

Probing Interfacial Mechanics and Electrostatics under Confinement

Joelle Frechette, Professor and Vice Chair of Graduate Education, Chemical and Biomolecular Engineering, University of California, Berkeley,

4:00pm – 5:00pm

Physics Colloquium

Online and In-Person Event

William Oliver, Professor of Physics, Department of Physics, MIT,

7:30pm – 9:00pm

Three Sisters

Ramo Auditorium

Public Event

Friday, April 24th, 2026

11:00am – 12:00pm

High Energy Theory Seminar

Online and In-Person Event

TBA

Shruti Paranjape, Brown University,

12:00pm – 1:00pm

IQIM Postdoctoral and Graduate Student Seminar

East Bridge 114

William Oliver, Director of the Center for Quantum Engineering, MIT,

2:00pm – 3:00pm

TAPIR Seminar

Online and In-Person Event

Title to be announced

Tal Adi, Postdoctoral Fellow, Department of Physics and Astronomy, USC,

3:00pm – 4:00pm

Aerospace Colloquium

Guggenheim 133 (Lees-Kubota Lecture Hall)

Carlos Alejandro Pantano-Rubino, Professor, Aerospace and Mechanical Engineering, University of Southern California,

7:30pm – 9:00pm

Three Sisters

Ramo Auditorium

Public Event

Saturday, April 25th, 2026

2:00pm – 3:30pm

In Nomine Terra Calens - a free Earth Week concert

7:30pm – 9:00pm

Three Sisters

Ramo Auditorium

Public Event

Sunday, April 26th, 2026

2:30pm – 4:00pm

Three Sisters

Ramo Auditorium

Public Event

Monday, April 27th, 2026

11:00am – 12:00pm

PhD Thesis Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Expanding molecular designs for mechanochromic polymers

Yan Sun, Graduate Student, Chemistry, Caltech,

4:00pm – 5:00pm

High Energy Physics Seminar

Online and In-Person Event

TBA

Seth Koren, University of Notre Dame,

Tuesday, April 28th, 2026

10:30am – 12:00pm

Laser Safety Training

Online Event

12:00pm – 1:00pm

NB-CNS Seminar - Daniel Mucida

Broad 100

Daniel Mucida, Professor Investigator, Howard Hughes Medical Institute, Immunology, Virology, and Microbiology, The Rockefeller University,

2:00pm – 3:00pm

X-Ray Safety Training

Online Event

4:00pm – 5:00pm

DIX Planetary Science Seminar

South Mudd 365

4:00pm – 5:00pm

Marcus Center Special Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)

Real-time simulations of ultrafast electron relaxation dynamics

Joshua S. Kretchmer, Assistant Professor, School of Chemistry & Biochemistry, Georgia Institute of Technology,

4:00pm – 5:00pm

Ulric B. and Evelyn L. Bray Social Sciences Seminar

Baxter B125

Topic to be announced

B. Pablo Montagnes, Associate Professor of Data & Decision Sciences and Political Science, Emory University,

Wednesday, April 29th, 2026

8:00am – 5/5 11:59pm

Midterm Examination Period

Academic

11:00am – 12:00pm

High Energy Theory Seminar

Online and In-Person Event

TBA

Francesco Calisto, Caltech,

4:00pm – 5:00pm

Environmental Science and Engineering Seminar

South Mudd 365

TBD

Alex Hall, UCLA,

4:00pm – 5:00pm

Organic Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Design and Application of New Pericyclic Strategies

Christopher Newton, Assistant Professor, Department of Chemistry, University of Georgia,

Internal Event

7:30pm – 8:30pm

POSTPONED: Watson Lecture - Sarkis Mazmanian

Beckman Auditorium

Sarkis Mazmanian, Luis B. and Nelly Soux professor of microbiology; Merkin Institute Professor,

Public Event

Thursday, April 30th, 2026

11:00am – 12:00pm

Mechanical and Civil Engineering Seminar

Gates-Thomas 135

Robots That Learn To Model The World By Playing

Anirudha Majumdar, Associate Professor, Mechanical and Aerospace Engineering (MAE) department, Princeton University,

4:00pm – 5:00pm

Physics Colloquium

Online and In-Person Event

Nelson Darkwah Oppong, Assistant Professor of Physics, PMA, Caltech,

4:00pm – 5:00pm

Social Sciences History Seminar

Baxter B125

Topic to be announced

Katherine Eriksson, Associate Professor, Department of Economics, UC Davis,

Friday, May 1st, 2026

11:00am – 12:00pm

High Energy Theory Seminar

Online and In-Person Event

TBA

Gaston Giribet, New York University,

12:00pm – 1:00pm

Center for Social Information Sciences (CSIS) Seminar

Baxter 125

Topic to be announced

Lauren Conger, Graduate Student, Department of Control & Dynamical Systems, Caltech,

2:00pm – 3:00pm

IQIM Postdoctoral and Graduate Student Seminar

East Bridge 114

Maine Christos, AWS Quantum Postdoctoral Scholar,

2:00pm – 3:00pm

TAPIR Seminar

Online and In-Person Event

Title to be announced

Stacy Kim, Nashman/CTAC Postdoctoral Fellow, CTAC, Carnegie Observatories,

4:00pm – 5:00pm

Inorganic-Organometallics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)

Fernando Guerrero, Graduate Student (Agapie Group),

4:00pm – 5:00pm

Inorganic-Organometallics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)

Colin Morrell, Graduate Student (See Research Group), Department of Chemistry, Caltech,

Monday, May 4th, 2026

2:00pm – 3:00pm

Special Biochemistry Seminar - Stephen Long (Sloan Kettering)

Gates Annex B122

Structure, Ca2+-dependent regulation, and ion selectivity of the mitochondrial calcium uniporter

Stephen B. Long, Professor, Structural Biology Program, Sloan Kettering Institute,

3:45pm – 4:45pm

Inorganic-Electrochemistry Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)

Amy Rosenzweig, Professor, Department of Chemistry, Northwestern University,

4:00pm – 5:00pm

High Energy Physics Seminar

Online and In-Person Event

TBA

Ameen Ismail, University of Chicago,

Tuesday, May 5th, 2026

10:30am – 11:30am

PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Soyoung Shin, Graduate Student, Chemical Engineering (Gao Lab), Caltech,

12:00pm – 1:00pm

Biology Seminar - Krishna Shrinivas

Broad 100

Krishna Shrinivas, Assistant Professor, Chemical and Biological Engineering and (by courtesy) Engineering Sciences and Applied Mathematics and Cell and Developmental Biology, Northwestern University,

12:00pm – 1:00pm

CMX Lunch Seminar

Annenberg 213

TBA

Nicholas Nelsen, Klarman Fellow, Department of Mathematics, Cornell University,

2:00pm – 3:00pm

PhD Thesis Defense

Spalding Laboratory 106 (Hartley Memorial Seminar Room)

Ryen O'Meara, Graduate Student, Chemical Engineering (Arnold Lab), Caltech,

2:30pm – 3:30pm

PhD Thesis Seminar

Crellin 151

Infrared Action Spectroscopy of Biomolecules for Planetary Science Applications

Tyler Nguyen, Graduate Student, Chemistry, Caltech,

3:00pm – 4:00pm

CTLO - Faculty Learning Community Workshop

Center for Student Services, 3rd Floor, Brennen Conference Room

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

Topic to be announced

Claudio Ferraz, Professor of Economics, University of British Columbia,

Wednesday, May 6th, 2026

11:00am – 12:00pm

High Energy Theory Seminar

Online and In-Person Event

TBA

Ahmed Sheta, Harvard University,

4:00pm – 5:00pm

Environmental Science and Engineering Seminar

South Mudd 365

TBD

Qiang Fu, University of Washington,

4:00pm – 5:00pm

Organic Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)

Programmable Syntheses of Polycyclic Natural Products via a Polyfunctional Intermediate Approach

Pengfei Hu, Professor, Department of Chemistry, Westlake University,

Internal Event

Thursday, May 7th, 2026

10:00am – 1:00pm

Caltech Purchasing Vendor Fair 2026

San Pasqual Walk

10:00am – 11:30am

Teaching Statement Workshop

Center for Student Services 360 (Workshop Space)

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