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The state of U.S. immigration

The Law School’s Fernando Chang-Muy breaks down the national immigration system.
Picture of mountainous scrubland with a reddish brown fence running through the terrain
The U.S./Mexico border is just one of the many places where migrants seek admission. Even if the process is uncertain and arduous, many people seek entry into the U.S. to seek a better life. 

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  • Exposure to air pollution worsens Alzheimer’s disease
    Emissions from a power plant.

    Image: Pencho Chukov via Getty Images

    Exposure to air pollution worsens Alzheimer’s disease

    New research from Penn Medicine finds living in areas with high concentration of air pollution is associated with increased buildup of amyloid and tau proteins in the brains of Alzheimer’s patients, accelerating cognitive decline.

    Sep 9, 2025

    Penn physicist Charles Kane to receive the 2026 Lorentz Medal
    Charles Kane

    Charles Kane, Christopher H. Browne Distinguished Professor of Physics at Penn’s School of Arts & Sciences.

    (Image: Brooke Sietinsons)

    Penn physicist Charles Kane to receive the 2026 Lorentz Medal

    Awarded every four years by the Royal Netherlands Academy of Arts and Sciences, the medal honors Kane’s pioneering research on topological insulators.

    Sep 4, 2025