The face of the Sun is not without expression, but it tells us precious little of what is in its heart.
                                    
-Armin Deutsch

I have no idea where this will lead us, but I have a definite feeling it will be a place both wonderful and strange."
                                    -Dale Cooper, Twin Peaks


I'm the Henry Norris Russell Fellow in the Department of Astrophysical Sciences at Princeton, and a 2011 TEDGlobal Fellow. I study magnetic activity in the atmospheres of cool stars and stellar effects on planetary habitability using data from NASA's Kepler Mission. In the links above-right, you'll find information on my current and past research projects, and a list of publications.
I also draw and write comics, and paint. You can see some of my non-work under the Art link in the menu above.