Personal profile

Research Interests

I am fascinated by the "inner space/outer space" connections that link the science at the smallest and largest scales.  My research focusses on the highest-energy sites in nature--the big bang, exploding stars (supernovae), and high-energy particles in space (cosmic rays)--where nuclear physics and elementary particle physics play a central role.  Understanding these processes and their interplay allows us to trace the history of matter over cosmic time. Turning the problem around, I use these high-energy phenomena as particle accelerators to probe fundamental physics in ways inaccessible to terrestrial experiment.


PhD in Physics. U. of Chicago 1994.
AB in Physics and English. Williams College 1989.

Honors & Awards


Office Address

216 Astronomy Building, MC-221
1002 W. Green St.
Urbana, IL 61801

Office Phone


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