Penn Chemists Identify Important Intermediate Molecule in Production of 'Atmosphere's Detergent'

A University of Pennsylvania team has observed rapid atmospheric reactions in the lab and identified an important intermediate molecule in Earth’s atmosphere. By tracking the molecule’s transformation to hydroxyl radicals, they are better able to predict how the atmosphere will respond to environmental changes. Their research helps to explain how the atmosphere maintains its reserves of hydroxyl radicals, which break down greenhouse gases like methane.

The study, published in Science, was led by Edmund J. Kahn Distinguished Professor of Chemistry Marsha Lester, along with members of her lab: graduate student Fang Liu and postdoctoral researcher Joseph Beames. They collaborated with Andrew Petit, also a postdoctoral researcher in the Department of Chemistry, and Anne McCoy, professor of chemistry at The Ohio State University.

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Arts & Sciences News

Marisa C. Kozlowski Named Next Associate Dean for the Natural Sciences

Kozlowski, who joined the Penn faculty in 1997, succeeds Mark Trodden, who transitions to the Dean of Penn Arts & Sciences on June 1.

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One Fourth Year, One Alum Receive 2025 Hertz Fellowship

Eric Tao, C’25, Gr’25 (left), and Suraj Chandran, C’23, were awarded the honor, part of a group of 19 fellows selected this year. Each one receives five years of funding toward a doctoral program.

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Benjamin Nathans Wins 2025 Pulitzer Prize in General Nonfiction

Nathans, Alan Charles Kors Endowed Term Professor of History, won for his book “To the Success of Our Hopeless Cause: The Many Lives of the Soviet Dissident Movement.”

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Mark Devlin Elected to National Academy of Sciences

He joins three others from Penn to receive the honor this year, all recognized for “distinguished and continuing achievements in original research.”

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Michael Jones-Correa and Sophia Rosenfeld Elected to American Academy of Arts & Sciences

They join three others from the University of Pennsylvania, selected as part of the Academy’s mission to convene leaders from “every field of human endeavor to examine new ideas, address issues of importance to the nation and the world, and work together.”

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Eva Del Soldato Awarded 2025-26 Rome Prize

She joins Sean Burkholder, of the Weitzman School of Design, and just 33 others in receiving the prestigious honor from the American Academy in Rome.

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