The test came as the U.S. prepared sanctions on Russia’s oil and gas sectors and European allies pledged more aid to Ukraine.

Trump warns Putin that U.S. nuclear submarine is stationed right off Russian shores in response to Moscow's new 8,000-mile ...

A Kremlin official says Russia’s test of a nuclear-powered missile that it claims can’t be stopped by air defenses reflects ...

By holding nuclear drills and boasting about the successful test of a pioneering nuclear-powered cruise missile, Russian ...

The main reason that no one else has tried to build something like this is that it doesn’t really have any use," one expert ...

P resident Donald Trump on Monday took aim at Russia’s announcement that it has tested a nuclear-powered missile that can go ...

The missile, which is claimed to possess extreme endurance and may pose a significant radiological hazard, is said to have ...

It's the second time in just a few months the US president has brought up nuclear submarines in response to Russian talk ...

Russia has completed another test of a cruise missile powered by a nuclear propulsion system amid rising tensions with the ...

Russian President Vladimir Putin’s latest threats that Moscow is preparing to deploy its new “invincible” nuclear-capable ...

MOSCOW (AP) — Russia tested a new nuclear-capable and powered cruise missile fit to confound existing defenses, inching ...