Beijing’s rising nuclear power and anti-use stance are helping temper Russia’s nuclear threats in its war against Ukraine.

For the first time in years, the Kremlin has officially claimed to have tested one of its so-called "super weapons" — the ...

Democratic U.S. Senator Edward Markey on Tuesday urged President Donald Trump not to resume explosive nuclear weapons testing ...

As Russia threatens nuclear attacks on Ukraine and NATO, and prototypes a nuclear-armed spacecraft, European space powers are ...

As Moscow threatens to launch nuclear warheads against NATO states helping Ukraine fend off the Russian invaders, the world ...

US President Donald Trump and Russian President Vladimir Putin have spent weeks trading threats to restart nuclear tests, an escalation kicked off by Putin’s boasts about tests of the Poseidon nuclear ...

Russian officials say they are waiting for an explanation from President Donald Trump about nuclear testing. He hasn't given ...

Nuclear-powered cruise missiles are not a new idea—they’re just a bad idea. While Russia’s Burevestnik missile is grabbing ...

Iranian scientists and nuclear experts made a second covert visit to Russia last year, in what the US claims has been a push ...

The white paper reiterates that China adopts a self-defense nuclear strategy, saying it maintains its nuclear forces at the ...

President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, ...

Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United ...