2007

Saul Perlmutter and Brian Schmidt and their teams: the Supernova Cosmology Project and the High-z Supernova Search Team (Australia, Chile, France, Spain, Sweden, UK and USA)

2006

John C. Mather   (Greenbelt, MD, USA) and the Cosmic Background Explorer Team

2005

James E. Gunn   (Princeton, NJ, USA)

2004      

Alan Guth   (Cambridge, MA, USA) and Andrei Linde (Stanford, CA, USA)

2003      

Rashid A. Sunyaev   (Moscow, Russian Federation & Garching, Germany)

2002      

Vera C. Rubin  (Washington, DC, USA)

2001      

Martin J. Rees  (Cambridge, UK)

2000      

Allan R. Sandage  (Pasadena, CA, USA) and James E. Peebles (Princeton, NJ, USA)