Spotlight: Stephon Alexander

Cosmologist
Penn State University

Stephon Alexander was born on the southern coast of Trinidad and Tobago and moved to the Bronx in New York when he was eight. His interest in physics started four years later when his father brought home a used computer. In his quest to learn how it worked, he “discovered the words ‘Quantum Mechanics.’ Although I was mystified by the equations,” he says, “I got hooked.”

Quantum mechanics is now a part of Alexander’s daily life as an assistant professor of physics, astronomy, and astrophysics at Penn State University. His research explores the interface between fundamental physics and cosmology, and in particular addresses questions about the early universe. He plays the saxophone, and his passion for improvisational Jazz influences his work.

Changing Physics

November 28, 2006

A listener asks: Was physics different when the universe was young?

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