Osher Online   

Art in the streets (including graffiti, murals, stickers, and paste-ups) gives voice to marginalized communities, shapes urban environments, and challenges institutional norms. This course explores graffiti and street art in the U.S. and around the world, examining their histories, motivations, and social impact. Participants will consider the rise of global mural movements, efforts to preserve and present street art, and its evolving role in activism, community identity, and social change.

Heather Shirey, PhD, is a Professor of Art History at the University of St. Thomas in Minnesota. Her research explores race and identity, migration and diasporas, and the role of monuments, memorials, and street art in shaping public space. As part of the Urban Art Mapping team, she co-created the George Floyd and Anti-Racist Street Art Database. Her work examines how street art documents collective experience and functions as activism, healing, and critical engagement.

Science is full of surprises. Dyes, accidentally discovered, launched the modern pharmaceutical industry. A failed experiment opened the door to new physics. Discoveries are never just facts. They are moments of creativity, struggle, and chance with far- reaching consequences. In this course, we will explore the human side of science, tracing breakthroughs in biology, chemistry, physics, and more. We will ask not only what was found, but how and why it matters.

Dr. Johnnie Hendrickson is a Teaching Professor in the School of Molecular Sciences at Arizona State University; he holds a PhD in chemistry and is the author of the textbook “Chemistry in the World.” His academic work focuses on science communication, the reciprocal relationship between science and society.

  Cha rles Blum served as a US diplomat and trade policy official for 17 years before launching a consulting firm that operated in Washington DC and Central Europe. He has developed more than four dozen courses focusing on global politics, war and peace, and international cooperation. He earned degrees in history from Eastern University and in international relations from the University of Pennsylvania.

Music has long provoked debate, from Beethoven and Stravinsky’s bold innovations to Broadway works like Annie Get Your Gun and South Pacific, now revisited through modern concerns about race, consent, and gender. Is political correctness enriching art or erasing cultural heritage? We will also examine plagiarism and borrowing in pop and film music, with cases involving The Beatles, Pink Floyd, and Peter Frampton. This course blends audiovisuals, anecdotes, and humor to explore music’s most controversial moments.