There has not been a major (or minor) nuclear explosion since the 1960s. This is almost entirely because ...

Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an ...

U.S. Energy Secretary Chris Wright said he expects U.S. nuclear-weapons testing sought by President Donald Trump to stop short of actual atomic bomb explosions for now. “I think the tests we’re ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

WASHINGTON — The nuclear weapons testing ordered by President Donald Trump will not involve nuclear explosions at this time, Energy Secretary Chris Wright said on Sunday. "I think the tests we're ...

WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

Last year, President Donald Trump shocked many people when he instructed the government to resume nuclear testing “on an ...