By KiddieDaily Editors · Jul 1, 2026 · 3 min read · Ages 10–12 · 1 source

Caltech Welcomes Astrophysicist Ray Jayawardhana as New President

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Article Ray Jayawardhana begins his tenure today as the 10th president of the California Institute of Technology.

His selection as Caltech’s president, and as the Sonja and William Davidow Presidential Chair and professor of astronomy, was announced Jan. Jayawardhana succeeds Thomas Rosenbaum, who had served as Caltech’s president since 2014. Founded in 1891, Caltech manages the Jet Propulsion Laboratory for NASA.

The lab traces its origins to 1936, when a group of Caltech graduate students and other rocket enthusiasts began pioneering work in rocket propulsion. Once NASA was established in 1958, JPL became the space agency’s first and only federally funded research and development center. “Today, I’m honored to begin my service as Caltech’s 10th president,” Jayawardhana wrote in his first message to the Caltech community.

“Long before this day appeared on the horizon, Caltech and JPL have held a special place in my mind as beacons of humanity’s most ambitious acts of exploration and discovery.” Looking ahead, Jayawardhana said he will be a fierce advocate for the Institute’s mission and the people who advance it, partnering with Caltech and JPL colleagues and other stakeholders to ensure the Institute will continue to have transformative impact on humanity. He also said he aims to pursue bold, catalytic investments in “blue-sky” ideas on campus, at JPL, and across the Institute’s suite of global observatories; enrich the educational experience of undergraduates, graduate students, and postdoctoral scholars; and expand the Institute’s engagement with the public. Jayawardhana steps into this role at a pivotal moment for Caltech, JPL, and NASA,” said Dave Gallagher, director of JPL.

“We look forward to working closely with him on missions that will help define a new era of U.S. exploration — extending humanity’s reach into the solar system, unlocking extraordinary scientific discovery, and inspiring future generations to dare mighty things.” Jayawardhana comes to Caltech from Johns Hopkins University, where as provost he oversaw the university’s 10 schools as well as an expansive portfolio of interdisciplinary programs, academic centers, and core administrative and operational units. Prior to Johns Hopkins, he served as the Harold Tanner Dean of the College of Arts and Sciences and the Hans A.

Bethe Professor and professor of astronomy at Cornell University. Earlier in his career, he was on the faculty at the University of Toronto, where he held a Canada Research Chair and served as senior adviser on science engagement to the university’s president. Jayawardhana earned his Ph.D.

in astronomy from Harvard University and a B.S. in astronomy and physics from Yale University. A pioneering astrophysicist, Jayawardhana investigates the origin and evolution of planets and planetary systems, as well as the formation of stars and brown dwarfs.

Using the largest telescopes on the ground (including the W. Keck Observatory, which Caltech co-manages with the University of California) and in space (especially NASA’s James Webb Space Telescope), he and his collaborators use remote sensing to characterize planets outside our solar system, or exoplanets, with an eye toward assessing the prospects for life beyond Earth. He is a core science team member for the Near Infrared Imager and Slitless Spectrograph instrument aboard the Webb telescope, and his research group has led Gemini Observatory large programs on high-resolution spectroscopy of exoplanetary atmospheres.

Jayawardhana will continue his research alongside his presidential responsibilities as a Caltech professor of astronomy in the Division of Physics, Mathematics and Astronomy.

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