The Pentagon’s latest hypersonic experiment marks a significant step in the race to field faster, more maneuverable weapons ...

Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Add Yahoo as a preferred source to see more of our stories on Google. President Trump posted an eyebrow-raising statement on Wednesday night on US nuclear testing. The US hasn't tested a nuclear ...

President Donald Trump has announced the US will start testing nuclear weapons in what could be a radical shift in his nation's policy. "Because of other countries testing programs, I have instructed ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Energy Secretary Chris Wright said Sunday that the weapons testing President Trump ordered last week will not include nuclear ...

President Donald Trump ordered the Department of War to resume testing nuclear weapons “on an equal basis” with Russia and China on Thursday, a practice halted by the U.S. in 1992. The announcement ...

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President Trump posted an eyebrow-raising statement on Wednesday night on US nuclear testing. The US hasn't tested a nuclear weapon in decades, just the delivery vehicles. Much of Trump's post doesn't ...

Energy Secretary Chris Wright said the testing ordered up in a surprise announcement by President Trump last week would focus on “the other parts” of nuclear weaponry. By Zolan Kanno-Youngs The ...