Brian Schmidt field of work astrophysics
Brian Schmidt is an internationally renowned researcher in cosmology and also in the physics of supernovae and gamma ray bursts. In particular, Schmidt's formation and leadership of the High-z Supernova Search Team led to the discovery that the expansion of our universe is accelerating, for which he shared the 2011 Nobel Prize in Physics.  This discovery completely changed our understanding of the universe.  It showed that about 70% of the mass of our Universe is in a previously unknown form which is now usually referred to as 'Dark Energy'.
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