Faculty

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Rossana Hu, Miller Professor and Chair of Architecture.

(Image: Eric Sucar)

This image visualizes the Milky Way and its surrounding “halo” of stars. Most stars in the Milky Way lie in the disc (like the Sun, for example), but stars from past collisions end up in the halo, a large “cloud” of stars that extends outwards in all directions. These halo stars have been enhanced in this image, but in reality would be very dim compared to the disc. The halo appears messy and “wrinkly” here, a sign that a merger has occurred relatively recently.

(Image: Halo stars: ESA/Gaia/DPAC, T Donlon et al. 2024; Background Milky Way and Magellanic Clouds: Stefan Payne-Wardenaar)

China Byrns used high-magnification confocal microscopy to visualize senescent glia (red) in Drosophila brains as part of a multidisciplinary approach to define the origin and effects of senescent cells in brain aging.

(Image: Courtesy of Riya Anand)

Hajishengallis, an expert in the immune mechanisms behind the gum disease periodontitis, worked with an international team to show that the innate immune system--typically thought to lack immune memory--can in fact be trained to "remember" past threats.

Image: iStock/Chainarong Prasertthai

Image: Courtesy of Penn Engineering

James English (left) and J.D. Porter have been collaborating on the research project for more than three years. 

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Image: iStock/mapo

Faith Bochert and Maria Villarreal Simon volunteered at the My Climate Story table at GreenFest in April 2024.

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