"Essential for long-duration missions." US firms to conduct game-changing nuclear tests in space: 'We're laying the ...

The Minuteman III intercontinental ballistic missile will take flight from Vandenberg Space Force Base in California.

President Donald Trump's calls to ramp up nuclear weapons testing have put nuclear watchdogs on alert while experts say the United States has little to gain.

During what would become the most dramatic month in space history, an apocalyptic explosion of near-nuclear magnitude took effect in the Baikonur Cosmodrome in Kazakhstan, two weeks before the Apollo ...

President Donald Trump has ignited a firestorm of controversy and confusion with his announcement that the United States will ...

Russia's government is preparing for possible nuclear tests, marking a significant shift in its nuclear strategy after ...

The nuclear weapons testing ordered by U.S. President Donald Trump will not involve nuclear explosions at this time, Energy Secretary Chris Wright said on Sunday.

Energy Secretary Chris Wright said Sunday that the weapons testing President Trump ordered last week will not include nuclear explosions. “I think the tests we’re talking about right now are ...

Energy Secretary Chris Wright says President Donald Trump's call for immediate resumption of nuclear weapons tests will not include explosions.

President Donald Trump ordered the U.S. to resume nuclear testing for the first time since a moratorium was declared in 1993.

After the president called for resuming nuclear testing “immediately,” the official said the administration is planning only ...