Lightning Reshapes Rocks at the Atomic Level, Professor of Earth and Environmental Science Finds

In a new paper published in the journal American Mineralogist, Reto Gieré, professor and chair of the Department of Earth and Environmental Science, and his coauthors found that a lightning strike produces enough pressure in a rock to create distinct atomic-level structures called shock lamellae. Prior to this study, the only natural events known to create this type of lamellae were meteorite impacts.

“I think the most exciting thing about this study is just to see what lightning can do,” Gieré said. “To see that lightning literally melts the surface of a rock and changes crystal structures, to me, is fascinating.”

Read the full release here.

Arts & Sciences News

Junhyong Kim Named Christopher H. Browne Distinguished Professor of Biology

Kim is an expert in genomics, single cell biology, mathematical and computational biology, and evolutionary genetics.

View Article >
Penn Arts & Sciences Students Win 2024 President’s Engagement Prize

They will design and undertake post-graduation projects that make a positive, lasting difference in the world.

View Article >
2024 School of Arts & Sciences Teaching Awards

Penn Arts & Sciences recognizes nine faculty and seven graduate students for their distinguished teaching.

View Article >
Wale Adebanwi and Deborah A. Thomas Named 2024 Guggenheim Fellows

The award is designed to allow independent work at the highest level under “the freest possible conditions.”

View Article >
2024 College of Arts & Sciences Graduation Speakers

James “Jim” Johnson, C’74, L’77, LPS ’21, a School of Arts and Sciences Board of Advisors member, and student speaker Katie Volpert, C’24, will address the Class of 2024 Sunday May 19 on Franklin Field.

View Article >
Undergraduate and Graduate Students Honored as 2024 Dean’s Scholars

This honor is presented annually to students who exhibit exceptional academic performance and intellectual promise.

View Article >