At 5:29am on July 16, 1945, humanity entered a dangerous new era as the world's very first nuclear explosion blossomed over New Mexico. As the blast, known as the Trinity nuclear test, vaporised the ...

Editor's note: If you'd like to pinpoint the instant when the world entered the nuclear age, 5:29:45 a.m. Mountain War Time on 16 July 1945, is an excellent choice. That was the moment when human ...