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Professor Joel Primack


Dr. Joel R. Primack specializes in the formation and evolution of galaxies and the nature of the dark matter that makes up most of the matter in the universe. He is one of the principal originators and developers of the theory of Cold Dark Matter, which has become the basis for the standard modern picture of structure formation in the universe. With support from the National Science Foundation, NASA, and the Department of Energy, he is currently using supercomputers to simulate and visualize the evolution of the universe and the formation of galaxies under various assumptions, and comparing the predictions of these theories to the latest observational data. He is also the author, with Nancy Abrams, of popular books on modern cosmology: The View from the Center of the Universe (2006) and The New Universe and the Human Future (2011)

More background:

Watch Joel explain dark matter in excerpts from National Geographic's "Inside the Milky Way"

Office: Room 318 Interdisciplinary Science Building (ISB)
Phone: (831) 459-2580
Fax: (831) 459-3043

Senior Writer:

Trudy E. Bell, M.A., a former editor for Scientific American and IEEE Spectrum magazines, is a science and technology journalist whose 19 top awards include the David N. Schramm Award of the American Astronomical Society (2006). She has written or co-authored a dozen books, including the Smithsonian Science 101 volume Weather (2007), the IEEE’s millennium book Engineering Tomorrow (IEEE Press, 2000), and four books for middle-school ages about astronomy and space. In 2010 and 2011 she was a Presidential Fellow in the SAGES Program of Case Western Reserve University.

More background:

Phone: (567) 623-6233 or


Sue Grasso (M.A., Stanford, Education) serves as the administrator for UC-HiPACC where she is responsible for managing and supervising the operations of the Center. Sue provides administrative and financial management and serves as liaison with collaborating institutions. She also handles purchases, payments, travel reimbursements, and event coordination. Her previous experiences include marketing for the University Press at both Yale and UC Berkeley, teaching at the junior high and high
school levels and most recently coordinating GATE (Gifted And Talented Education) and professional development programs for Santa Cruz City Schools.

Office: SCIPP Department, UCSC
Phone: (831) 459-1531
Fax: (831) 459-5777

Scientific Visualization Coordinator:

Miguel Rocha acts as a liaison between the academic and high tech communities. He is focused on creating interactive tools for scientists to manage, analyze and visualize their data, including 3D visualizations and animations. He received his B.S. in Astrophysics in 2006 at UCSC, and his Ph.D in Physics in 2013 at UCI. His experience includes producing and analyzing large cosmological simulations to inform our understanding on the formation of galaxies and the nature of the dark matter.


Steve Zaslaw, Webmaster, University of California High-Performance AstroComputing Center


Steve Zaslaw (A.B., Physics, MS, Computer Science) is a 25-year veteran of the computer industry, including ten years in documentation, development, and maintenance of Unix system management GUI tools. For several years he has been webmaster and editor at Watsonville Wetlands Watch and Osher Lifelong Learning Institute at UCSC.

Phone: (831) 295-6636