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Natural Sciences

Lifesaving breakthrough in bacterial behavior

Penn biophysicist Arnold Mathijssen uncovers how and why E. coli manage to swim upstream causing infections in challenging places such as the urinary tract, respiratory system, and catheters, pointing to new strategies for designing safer, more effective biomedical tools and treatments.

Three students walking under an arch in the snow on Penn’s campus. Campus & Community

Penn named top producer of 2025-26 Fulbright students

Rendering of a cancer cell in a pancreas Health & Medicine

Investigational blood biomarker panel may improve detection of pancreatic cancer

Handwritten notes and paper relics from TV shows in the past. Arts & Humanities

An inside look at the history of television

Locust Walk in the snow. Campus & Community

The Office of Ethnic and Religious Interests (Title VI), one year in

Three members of the PennSTAR flight crew next to a helicopter. Health & Medicine

PennSTAR delivers critical care in the air, across the region

MORE NEWS VIA PENN TODAY Dag Woubeshet (right) speaks with student in a classroom who is giving the thumbs up. Arts & Humanities

Literature and medicine

Handwritten notes and paper relics from TV shows in the past. Arts & Humanities

An inside look at the history of television

Album cover for My Mother In Love's “The Summer Sessions” Arts & Humanities

The professor who moonlights as a songwriter

Left: Valeria Seminario; right: An old illustrated map of the Americas. Arts & Humanities

Connecting Latin American fiction through infrastructure and transit

Alex Watrous throwing pottery on a wheel. Arts & Humanities

Sizing up Pennsylvania’s creative workforce

An ancient excavation site. Arts & Humanities

A study of the ancient built environment

MORE NEWS VIA PENN TODAY A row of newspaper boxes, mostly empty. Social Sciences

New report unpacks the crises facing American journalism and offers solutions

Alyssa Smith Social Sciences

Early modern literature in the Black Atlantic world

Thomas Paine’s Common Sense. Social Sciences

Seven things to know about ‘Common Sense’

An elderly person holding a baby while blowing out candles on a birthday cake. Social Sciences

Planning ahead in an age of longevity

Brian Whetstone. Social Sciences

Preserving the past

Philadelphia’s Market Street east of City Hall in 1889. Social Sciences

A design fall studio brings interdisciplinary thinking to Philly’s historic and commercial core

VISIT PENN TODAY Sign up for the Penn Today Newsletter Traders at the New York Stock Exchange looking at monitors. Business & Law

Is there an AI bubble and what happens if it bursts?

A model of teeth used for dental practice. Business & Law

The path from labs to the marketplace

Graphic art of two stylized heads looking at each other. Business & Law

Does AI limit creativity?

Bruce I. Jacobs Business & Law

The Wharton School launches Master of Science in Quantitative Finance with $60M gift from Bruce I. Jacobs

A human face with three deepfakes above it. Business & Law

Deepfakes, digital doubles, and the law: Jennifer Rothman on protecting identity in the AI era

The Marriner S. Eccles Federal Reserve building in Washington, D.C. Business & Law

Understanding the Fed’s inflation outlook

MORE NEWS VIA PENN TODAY Artist rendering of several people conected with string stretch their connections to the limit, testing the strength of unity. Natural Sciences

How to incentivize problem solving in groups

An icy bench in a city. Natural Sciences

Why are icy surfaces slippery?

Six separate piles of foam. Natural Sciences

Physics of foam strangely resembles AI training

Tian Huang and Doris Wagner Natural Sciences

How plants ‘hedge their bets’ for better reproductive outcomes

Artist's rendering of bacteria moving through a nanofabricated tube. Natural Sciences

Lifesaving breakthrough in bacterial behavior

A person putting ornaments on an artificial Christmas tree. Natural Sciences

Weighing sustainability of real vs. fake Christmas trees

VISIT PENN TODAY Sign up for the Penn Today Newsletter Chris Callison-Burch teaching in a classroom. Technology

Penn Engineering’s Chris Callison-Burch on 25 years of AI innovation

Kevin Johnson seated at his desk with a computer and Karen O'Connor, seated at his desk, both testing the new equipment. Technology

New video dataset to advance AI for health care

A microscopic robot on a U.S. penny for scale. Technology

The world’s smallest programmable, autonomous robots

Hand holding a microdevice Technology

Tumor-on-a-chip offers insight into cancer-fighting cells in immunotherapy

Eva Dyer Technology

Eva Dyer is listening to the brain’s code with a little help from AI

Dongyin Hu models BlinkWise glasses at his computer station. Technology

AI at the eyelid: Glasses that track health through your blinks

MORE NEWS VIA TODAY A person in bed taking earplugs out of a case. Health & Medicine

Pink noise reduces REM sleep and may harm sleep quality

Rendering of a cancer cell in a pancreas Health & Medicine

Investigational blood biomarker panel may improve detection of pancreatic cancer

A person getting a bandage on their arm after a flu shot from a medical provider. Health & Medicine

‘Nudging’ both patients and providers boosts flu vaccine numbers

Three members of the PennSTAR flight crew next to a helicopter. Health & Medicine

PennSTAR delivers critical care in the air, across the region

Katrin Hinrichs and Matheus Felix in a lab. Health & Medicine

Moving closer to ‘true’ equine IVF for clinical use

Felicia Divito with an iPad at New Bolton Center. Health & Medicine

Safeguarding health for animals and people

MORE NEWS VIA PENN TODAY Three students walking under an arch in the snow on Penn’s campus. Campus & Community

Penn named top producer of 2025-26 Fulbright students

An archway on Penn’s campus in the snow. Campus & Community

Awards and accolades for Penn faculty

Locust Walk in the snow. Campus & Community

The Office of Ethnic and Religious Interests (Title VI), one year in

High school students in a science class. Campus & Community

Penn receives national distinction for community engagement

Ben Franklin statue in front of Penn’s College Hall. Campus & Community

Awards and accolades for Penn faculty

Spike Lee speaking on stage with Heather Williams. Campus & Community

5 things: A conversation with Spike Lee

MORE NEWS VIA PENN TODAY Fourth-year student Prithvi Parthasarathy standing with arms crossed in the Neural and Behavioral Sciences Building Global

An innovative AI tool to improve health care delivery in rural India

People walk in front of an election notice board displaying posters of candidates for the Lower House elections on the day of the election campaign kick-off on January 27, 2026 in Kobe, Japan. Global

Understanding Japan’s snap elections

The exterior of the building for COP30. Global

Bringing COP30 from Brazil into Penn classrooms

Florencia Polite. Global

Florencia Polite: Healer, educator, advocate

Florence Onyiuke. Global

Penn fourth-year Florence Onyiuke named a 2026 Rhodes Scholar

Lauder Institute students looking at a scale model of a city. Global

A Lauder Institute intercultural venture in Oman and the UAE

VISIT PENN TODAY Sign up for the Penn Today Newsletter greenland melting glaciers

Natural Sciences

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.

LEARN MORE Feb 4 Wellness

Well-Being Pop-Up: Optimistic Mindset

Penn staff are invited to join this 15-minute conversation about activating an optimistic mindset. Participants will practice strategies to help them grow from various challenges. Register to attend.

Feb 4 istock art of digital learning Special Events

Accountable Artificial Intelligence Lunch Series

Penn researchers interested in AI governance, ethics, and policy can join the Wharton Accountable AI Lab’s monthly lunches, which are informal conversations around recent business, technology, and legal developments. Attendees are encouraged to bring topics to discuss. Food will be provided. Register to attend.

Feb 4 Talks

How Literature Influences Everyday Life

This lecture at Public Trust—presented in partnership with the Department of English—will explore the ways that literature and literary study intersect with daily life. The program will begin with a talk by John Lurz, an associate professor of English at Tufts University, followed by a public dialogue with Jean-Michel Rabaté, professor of English and comparative literature at Penn. Free and open to the public.

MORE EVENTS VIA PENN TODAY

Federal Government Updates

Penn is closely monitoring federal policy changes affecting institutions of higher education and academic health systems.

Learn more

Title IX Compliance in Athletics

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

Learn More Students beneath the large sculpture of the Penn shield at Penn Commons, framed by brilliant fall foliage.

Penn Forward

Students passing beneath the massive 'Covenant' sculpture on Locust Walk

In Principle & Practice

mark alan hughes at the kleinman center

Climate and Sustainability Action Plan

karen detlefsen classroom with west philly children

Campaign for Community

singh nano clean room

Research & Innovation

Person holding a bag walking in front of the large Penn Logo at Penn Commons with snow in the background.

Snow place like home.

Instagram @uofpenn

Perry World House has selected 20 graduate students to form the 2025-26 cohort of its Graduate Fellows Program, elevating the impact their work will have on a global scale.

Twitter @uofpenn Two members of the Penn Vet School working with a cat during a free clinic.

Last week, more than 200 cats and dogs from across Philadelphia received care at @PennVetSchool’s free annual Dog and Cat Wellness and Vaccination Clinic.

Instagram @uofpenn

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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

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