Stephen Hawking is a scientist.
Cosmology ( from the Greek κόσμος , kosmos `` world '' and - λογία , - logia `` study of '' ) is the study of the origin , evolution , and eventual fate of the universe . Physics ( from [ φυσική , phusikḗ ( epistḗmē ) , knowledge of nature ] , from φύσις phúsis `` nature '' ) is the natural science that involves the study of matter and its motion and behavior through space and time , along with related concepts such as energy and force . Stephen Hawking . Hawking is an Honorary Fellow of the Royal Society of Arts , a lifetime member of the Pontifical Academy of Sciences , and a recipient of the Presidential Medal of Freedom , the highest civilian award in the US .