Eight metres long and weighing 25 tonnes, a replica of the so-called Tsar Bomb, the most powerful nuclear bomb ever detonated, has gone on display for the first time in Russia, in the midst of an ...

The Soviet Union built the most powerful nuclear weapon ever created, then deliberately reduced its explosive power before testing it. This video explains why engineers feared fallout, delivery ...

Russia has test-fired a new intercontinental ballistic missile, with President Vladimir Putin describing the nuclear-capable Sarmat weapon as the world’s “most powerful” missile. State television ...

Add Yahoo as a preferred source to see more of our stories on Google. Vladimir Putin said Russia plans to deploy its new Sarmat nuclear missile system before the end of the year. ‘X-Men’ Star Famke ...

This is read by an automated voice. Please report any issues or inconsistencies here. Russia successfully test-fired a new intercontinental ballistic missile Tuesday, with President Putin claiming it ...