The U.S. Army is moving closer to deploying a new class of nuclear technology that could reshape how the United States ...

VIENNA -- In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear ...

In 1958, the United States carried out a series of top secret nuclear detonations in outer space. Operation Argus aimed to ...

President Donald Trump on Thursday said he’s ordered the Defense Department to begin testing nuclear weapons “on an equal basis” with other countries, according to a post on his social media platform.

This is read by an automated voice. Please report any issues or inconsistencies here. Trump says U.S. will restart nuclear testing, reversing decades of policy since the last test in 1992. Russia, ...

A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) In what would be a major shift in a decades-old American policy against global nuclear ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

Energy Secretary Chris Wright said Sunday that the Trump-ordered nuclear weapons tests will not involve explosions of any kind. “I think the tests we’re talking about right now are system tests,” ...

In recent years, Pyongyang has tested a range of increasingly advanced weapons, including solid-fueled missiles, highly ...

From Russia’s floating reactors to China’s 100-year battery, these seven milestones shaped the global nuclear energy outlook ...

In 1955, the US Navy detonated a nuclear warhead deep beneath the Pacific Ocean during Operation Wigwam. The test focused on ...