The Day the Universe Changed

The Day The Universe Changed is the title of a ten-part BBC documentary written and presented by James Burke. It was originally shown on BBC1 between 19 March and 21 May 1985.

The series examines key moments in Western History where new knowledge in science changed the way the modern Western world thinks. It was the third part of a James Burke trilogy which began with Connections (1977), followed by The Real Thing (1980).