Space Nuclear Power Corporation Awarded DARPA Agreement for Ground Test of Autonomous Nuclear Reactor Controller ...

The Trump administration has been pressing China in confidential diplomatic talks over U.S. allegations that Beijing has conducted very low-level nuclear tests, raising a sensitive national-security ...

Trump's announcement breaks with more than three decades of policy. The last time the United States tested a nuclear weapon was in 1992.

Add Yahoo as a preferred source to see more of our stories on Google. A mushroom cloud rises from a test blast at the Nevada Test Site on June 24, 1957. | U.S. Energy Department via AP President ...

China has revealed for the first time the deployment of third-generation nuclear submarine tests ...

DUBAI, United Arab Emirates — President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the ...

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 ...

Small earthquakes near North Korea's nuclear test site began weeks after the last blast in 2017 and grew more frequent for ...

Clarity is key on most issues relating to nuclear weapons, and testing them is no exception. America’s adversaries are carrying out low-level nuclear tests and gaining an advantage over the United ...

President Donald Trump on Wednesday said he had directed the Pentagon to begin testing nuclear weapons “on an equal basis” with Russia and China, triggering uncertainty over the decades-old U.S.

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...