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Why even impartial judges can seem biased

Why even impartial judges can seem biased

Penn Carey Law professor Leo Katz explains how the selection effect and judicial strategy can make merit-based rulings look indistinguishable from politically motivated or random decisions.

2 min. read

Connecting with America’s 250th anniversary

Connecting with America’s 250th anniversary

Ahead of the main event on July 4, 2026, marking the signing of the Declaration of Independence, Penn students, faculty, and staff will have multiple early opportunities to engage with America’s 250th anniversary.

3 min. read

A massive chunk of ice, a new laser, and new information on sea-level rise
A researcher walking through a glacier in Greenland.

A massive chunk of ice, a new laser, and new information on sea-level rise

For nearly a decade, Leigh Stearns and collaborators aimed a laser scanner system at Greenland’s Helheim Glacier. Their long-running survey reveals that Helheim’s massive calving events don’t behave the way scientists once thought, reframing how ice loss contributes to sea-level rise.

5 min. read

https://in-principle-and-practice.upenn.edu/
Students walk beneath The Covenant on Locust Walk at dusk

In Principle and Practice

Penn’s strategic framework

Penn’s guiding principles are the University’s enduring values and distinctive strengths: anchored, inventive, interwoven, and engaged. The practices support and strengthen Penn’s core educational mission. 

At Penn Today, we focus on some of the ways the University is putting this framework into action. From student, faculty, and staff profiles to research updates and event coverage, Penn Today highlights the latest examples of the University’s principled approach to excellence.

Students test one way to combat extreme heat in Philadelphia
Nafisa Bangura (left) and Angelica Dadda (right) doing hands-on experimental work in the Composto Lab.

Students test one way to combat extreme heat in Philadelphia

Third-year students Nafisa Bangura and Angelica Dadda expanded upon a multidisciplinary research endeavor to evaluate a reflective pavement coating as a tool to mitigate extreme heat. Their work may inform policy efforts to improve urban heat resilience.

4 min. read

Penn in the News

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  • Mounting pressure on local news
    WHYY (Philadelphia)

    Mounting pressure on local news

    Victor Pickard of the Annenberg School for Communication joins a conversation about the importance of reliable local news.