
News & Events
Department News

Faculty, fellows among global leaders at 2025 United Nations Ocean Conference
University of California, Santa Cruz, and the Center for Coastal Climate Resilience represented at recent international climate meetings

James Webb telescope confirms cooling effects of Pluto’s haze
New study in Nature Astronomy affirms hypothesis made by UC Santa Cruz’s Xi Zhang in 2017

The ripple effect of small earthquakes near major faults
Minor quakes can disrupt natural tectonic patterns deep underground and change stress landscape, new study finds

The Science Division announces recipients of Distinguished Alumni Awards
Gabriel Filippelli, Aradhna Tripati, and Seath Brook Ahrens are this year’s Distinguished Alumni Award recipients for the Science Division

Science Division staff honored with new award for outstanding service, dedication
Jeannette Peters, Patti Schell, and Deana Tanguay share division’s first Outstanding Staff Award

UC Santa Cruz ocean scientist Adina Paytan honored for international research leadership
Adina Paytan, a professor in the Earth and Planetary Science Department and the Institute of Marine Science, has been awarded the Tommy and Yvette Edmondson Distinguished Service Award by the Association for the Sciences of Limnology and Oceanography.

A ‘remelting’ of lunar surface adds a wrinkle to mystery of Moon’s true age
In an “idea paper” published on December 18 in Nature, UC Santa Cruz Professor Francis Nimmo and his co-authors propose a “remelting” of the Moon’s surface 4.35 billion years ago due to the tidal pull of Earth causing widespread geological upheaval and intense heating.

Magnetic tornadoes create Earth-size spots discovered at Jupiter’s poles
While Jupiter’s Great Red Spot has been a constant feature of the planet for centuries, a team of astronomers have discovered equally large spots at the planet’s north and south poles that appear and disappear seemingly at random.

New book California Catastrophes challenges coastal communities to confront reality
It’s no secret that Californians live with the reality of earthquakes, landslides, wildfires, and other natural disasters. This confronts those who choose to stay, and the many who move here, with the equally ominous question: What can we do about it?
Department Spotlight
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Graduate Student Tessa Holzmann Awarded Seed Funding by UCSC Science Division
Tessa Holzmann, a Ph.D. student in the Earth & Planetary Sciences Department advised by Distinguished Professor Paul Koch, has received $6,010 in seed funding for her project “Unlocking Ancient Marine Ecosystem Structure and Evolution through Calcium Stable Isotopes.”
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EPS welcomes new Assistant Professor, Ethan Williams
Dr. Ethan Williams joined our department on July 1, 2025. He applies fiber-optic sensing to problems in seismology and oceanography. His research interests include wave physics, Earth structure, ocean dynamics, ocean-solid Earth interaction, and geohazards.
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Summer Field Camp 2025 is in the books!
Another summer field camp in the Eastern Sierra is officially in the books! Each year, students in EART 189B – Summer Field Camp spend weeks immersed in the geologic wonders of the Poleta Fold Belt, deep in the Eastern Sierra Nevada. It’s not just about mapping complex structures or mastering field techniques—this experience is a…