Natural Sciences

Gravity follows Newton and Einstein’s rules, even at cosmic scales

By tracking galaxy clusters hundreds of millions of lightyears apart, Penn physicist Patricio Gallardo and collaborators find that the laws of gravity written by Newton and Einstein still hold, leaving little doubt that invisible dark matter exists

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graduate research student working in thermal architecture lab at pennovation center

Upcoming Events

hillside in morris arboretum Special Events

Native Trees Tour

This guided tour at the Morris Arboretum & Gardens will highlight native tree specimens, from huge tulip poplars to the smaller pitch pine and pawpaw. Attendees can view a selection of trees native to the region that are suited to local growing conditions and will learn how native trees provide vital support, food, shelter, and habitat for insects and other local wildlife. Free with Penn ID.

An exterior view of the Penn Museum Special Events

Penn & Philly: 250–Free Community Day

This free program hosted by the Penn Museum and the Wharton School will feature the Juneteenth Freedom Stage, offering live music and performers, food trucks, and local small-business retail vendors. There will also be an activity zone for all ages, pop-up exhibitions, educational workshops, and access to all the Penn Museum galleries. The Wellness Empowerment Project —a collaboration between Wharton and Penn Medicine—will feature a health and wellness fair, financial literacy resources, health screenings, and access to community-based services. Registration is encouraged.

Exhibits

Exhibition: The Six Stages of Modern Connection

Created by Penn alum and Bangkok Pride Award nominee Timethius J. Terrell, in collaboration with several artists from the African and Asian diasporas, “The Six Stages of Modern Connection” is an international, immersive mixed-media exhibition. The showcase captures the mirrored stories of two young queer men—one who is Black, one who is Asian—and their journey towards finding each other. Sponsored by several Penn Centers, the exhibition is located in Philadelphia at the COLOURS Organization, and in Bangkok, Thailand, at Luka Cafe Sathorn. Free and open to the public.

Ends June 19, 2026
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Supporting our Community

Building Community, Combatting Antisemitism, Countering Hate, and Supporting Every Member of the Penn Community

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Title IX Compliance in Athletics

Penn's Title IX Resolution with the U.S. Department of Education Office for Civil Rights

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Penn Priorities

A look at a few of our big picture priorities that improve Penn as we create knowledge to benefit the world.

Equal Opportunity and Nondiscrimination at Penn

The University of Pennsylvania seeks talented students, faculty, and staff with a wide variety of backgrounds, experiences, and perspectives. The University of Pennsylvania does not discriminate on the basis of race, color, sex, sexual orientation, religion, creed, national origin (including shared ancestry or ethnic characteristics), citizenship status, age, disability, veteran status or any other class protected under applicable federal, state, or local law in the administration of its admissions, financial aid, educational or athletic programs, or other University-administered programs or in its employment practices. Questions or complaints regarding this policy should be directed to the executive director of the Office of Equal Opportunity Programs; Franklin Building, 3451 Walnut Street, Suite 421, Philadelphia, PA 19104-6106; or (215) 898-6993.

Nondiscrimination Statement