Dennis William S. Sciama (1926 – 1999) was a British physicist who had
earned his PhD in 1953 at Cambridge University with Paul Dirac. He taught at Cornell, King’s College
London, Harvard and the University of Texas at Austin, but mostly at Cambridge (1950s and 1960s) and
the University of Oxford (1970s and early 1980s). In 1983, he became professor of Astrophysics
at the International School of Advanced Studies (SISSA) in Trieste.