From today's featured article Grapple 1 nuclear test, 15 May 1957 Operation Grapple was a series of British nuclear weapons tests carried out in 1957 and 1958 at Malden Island and Christmas Island in what is now Kiribati. Britain had successfully tested an atomic bomb in October 1952, and in July 1954, decided to develop a hydrogen bomb. In the first test, Grapple 1 (pictured), the bomb's ...