"What we need now is not to improve the nuclear doctrine, but the 'Oreshnik'," the Russian president said on Tuesday.

China hosted a meeting last week with four other major nuclear-armed countries, saying this can avoid misunderstanding and ...

A Russian spacecraft launched higher than most satellites has long had the Pentagon worried — and new revelations about what ...

(Reuters) - A possible resumption of nuclear weapons tests by Moscow remains an open question in view of hostile U.S.

There would be no sound, no fire and no shockwave. There would be no mushroom cloud. From the surface, people would see a ...

The device would have had a yield approximately double that of the combined explosive power of all nuclear weapons in ...

Moscow could resume nuclear weapons testing for the first time in more than 30 years, a senior Russian diplomat suggested on ...

Fat Man was the codename given to the plutonium core nuclear weapon that was developed as part of the Manhattan Project at ...

Most civilian satellites are very sensitive to high-energy radiation and an atomic explosion in low Earth orbit would ...

Moscow could resume nuclear weapons testing for the first time in more than thirty years, a senior Russian diplomat suggested ...