published as the introductory chapter in the volume: Compact Stellar X-ray Sources, by Lewin & van der Klis (Cambridge University Press). Look here for all the chapters.
In the news
A radio interview I gave in January 2007 for NPR Science Friday on Gravity
Look here for the extensive media coverege of the conference Rethinking Gravity
In June 2005, I received the Academic Prize from the Bodossaki Foundation in Greece.
Research Interests 
Read my review article: