The United States is on a mission to modernize its aging nuclear weapons stockpile. And physicists have feelings about it — and the future of nuclear weapons more broadly. To work on nuclear weapons, ...

Jensen Ackles, Eric Dane and Jessica Camacho lead Derek Haas' 13-episode race to save L.A. from a nuclear attack. By Daniel Fienberg Chief Television Critic The 10th and last episode of Countdown that ...

In “Nuclear War” and “Countdown,” Annie Jacobsen and Sarah Scoles talk to the people whose job it is to prepare for atomic conflict. Evidence of the first test of a full-scale thermonuclear device ...