It follows the previous work (Garnett, 2001). This review summarises and highlights research focused on the impact of science and technology museums, and a variety of science centres, (referred to collectively as Science & Discovery Centres). Comparable evidence from the informal learning sector as a whole including the arts, heritage and cultural sectors has also been included, where relevant. The review specifically pays attention to research evidences that support how Science & Discovery Centres help create memorable learning experiences which can have a lasting impact on attitudes and behaviour, increase visitors’ knowledge and understanding of science; promote trust and understanding between the public and the scientific community and, have an economic impact.