ADVANCED REGISTRATION REQUIRED

Limited to 80 guests, first-come, first-served. 

Shuttle transportation from Alumni House provided. 

Find out how JPL has pushed back the frontiers of space exploration. Enjoy a three-hour tour, including Mission Control, the Mars Yard, and the auditorium with its full-scale replicas of some of America’s most famous spacecraft. 

Requires extensive walking. The tour lasts two to three hours. The walking distance for the tour is approximately 0.8 miles with multiple flights of stairs. Tours involve a considerable amount of walking and stair climbing. Wheelchair access can be accommodated with advance notice; however, wheelchairs cannot be provided. 

JPL requires that all U.S. citizens, 18 years of age or older, present official, government-issued photo identification (driver’s license or passport) before being allowed entry. All non-U.S. Citizens 18 years of age or older must present a passport or resident visa (green card) before being allowed entry. Individuals without proper identification will not be admitted to the Laboratory. 

MEET AT BECKMAN AUDITORIUM

Join Caltech History and Architectural Tour Service (CHATS) docents and revisit your lecture halls, tour dramatically renovated buildings, and see the award-winning new campus buildings, thoughtfully designed to promote innovative scientific inquiry and noted for their architectural statements.

BLACKER, DABNEY, FLEMING, LLOYD, PAGE, RICKETTS, AND VENERABLE (FORMERLY RUDDOCK) HOUSES

Join classmates from your House and current student residents for their Thursday evening House dinner. Share stories and see how House traditions have evolved.

MEET AT BECKMAN AUDITORIUM

Join Caltech History and Architectural Tour Service (CHATS) docents and revisit your lecture halls, tour dramatically renovated buildings, and see the award-winning new campus buildings, thoughtfully designed to promote innovative scientific inquiry and noted for their architectural statements.

KECK CENTER COURTYARD TBD

Members of the Torchbearers Legacy Society who have provided for Caltech in their estate plans or who have completed life income gifts can stop by for a casual breakfast among friends.

KECK CENTER CONFERENCE ROOM TBD

In this presentation, Erica White (Executive Director, J.P. Morgan Private Bank) and Rick Robertson (Executive Director, Caltech Office of Gift Planning) will discuss trends shaping the financial and philanthropic sector, and best practices on how to support yourself, your loved ones, and your favorite charities.

GATES ANNEX/LINUS PAULING LECTURE HALL (22 GATES) TBD

Reminisce about pranks and other notable events for the Class of 1975. Professors Harry Gray, PhD and George Rossman, PhD (PhD ’71) will lead the storytelling. They also promise a fun chemistry demonstration. Contact Richard Gruner (BS ’75) at  r0gruner@gmail.com to arrange to tell your story.

BECHTEL DINING HALL

Is it ever possible to connect with everyone you want to at an alumni reunion? Enjoy great company and conversations over lunch, and hear about student life today from Tom Mannion, Senior Director of Campus Activities and Engagement.

CHEN 100 LECTURE HALL

Hear from some of Caltech’s favorite professors about their perspectives on life at Caltech in the ’70s and before, and the many changes that have happened since. Hear from beloved professors Harry Gray, PhD; George Rossman, PhD (PhD ’71); Morgan Kousser, PhD; Andy Ingersoll, PhD, and Carver Mead (BS ’56, MS ’57, PhD ’60).

This is a chance for informal conversation, not planned presentations. Enjoy the spontaneous chat with audience participation.

PRESIDENT’S RESIDENCE

Join President Thomas F. Rosenbaum and Professor Katherine T. Faber at their residence for a welcome reception honoring the Class of 1975. The reception is open exclusively to members of the Half Century Club.

ATHENAEUM – OLIVE WALK STEPS

Class of 1975 members will gather on the Athenaeum steps to cement memories of the weekend with photos.

ATHENAEUM

All Half Century Club (HCC) members are invited to honor the newest inductees from the Class of 1975 and celebrate class milestones over dinner at the beautiful Athenaeum. HCC members who graduated in 1975, 1970, 1965, 1960, 1955, 1950, and 1945, you are in the spotlight! Provost David Tirrell, PhD, will share remarks on the groundbreaking work being done at Caltech, and the Institute’s impressive leadership toward the future. Hear from classmate, Ray Feeney (BS ’75), 2008 Distinguished Alumni Award recipient.

RAMO AUDITORIUM

Separate Registration Required

For more information, please contact Hyesung Park by phone at 626-395-3295 or by email at hschoe@caltech.edu.

GARDEN OF ASSOCIATES AT DABNEY HALL

Separate registration required.  Exclusive to invited donors and all members of the Half Century Club.     

Celebrate our talented scholarship and fellowship recipients and the donors and friends who support them. Join us for an evening with the philanthropists of today and the leaders of tomorrow at Connect 2025. The event features a dinner reception and brief, student-focused program.    

Direct invites will be sent in April.  Please contact advancementevents@caltech.edu with any questions.   

RAMO AUDITORIUM

Separate registration required. 

For more information, please contact Hyesung Park by phone at 626-295-3295 or by email at hschoe@caltech.edu.

HUNTINGTON GARDENS, 1151 OXFORD ROAD, SAN MARINO

Join your alumni friends for an independent lunch at the Huntington’s 1919 Café. The café is located in the public area; admission is not required to dine at the 1919 Café.

ALUMNI HOUSE

Join current students in a celebration of the women of Caltech then and now. Enjoy tea, sandwiches, pastries, and more during this fun afternoon tea.

RAMO AUDITORIUM

Separate Registration Required

For more information, please contact Hyesung Park by phone at 626-295-3295 or by email at hschoe@caltech.edu.