School of Arts & Sciences

Home of the humanities, social sciences and natural sciences at Penn, with 27 academic departments and a faculty of nearly 500 world-renowned scholars.

College of Arts & Sciences

Graduate Division

Professional and Liberal Education

Hunting for Planets

Assistant Professor of Physics and Astronomy Cullen Blake discusses the Pluto flyby and "Earth's twin."

Celebrate the Arts and Sciences

Make a gift to the Arts and Sciences Annual Fund—the most direct way to support the distinctive mission of Penn Arts and Sciences.

SAS Blogs


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60-Second Lecture
Rebecca Bushnell
Wednesday September 9
11:55 am
Stitler Plaza
Penn Lightbulb Cafe
Dorothy Roberts
Tuesday September 15
6:00 pm
World Cafe Live
60-Second Lecture
Jeremy Greenwood
Wednesday September 16
11:55 am
Stiteler Plaza