All flights to and from El Paso International Airport in Texas have been canceled for “special security reasons,” the Federal ...

Rocket Lab will launch a hypersonic test mission aboard its HASTE rocket later this ...

In what would be a major shift in a decades-old American policy against global nuclear proliferation, President Trump says he has directed the Pentagon to “start testing” U.S. nuclear weapons “on an ...

Decision follows China's expansion of nuclear stockpile Kremlin reacts cautiously to Trump's nuclear remarks Russia's recent nuclear tests include Poseidon super torpedo Pentagon expects Chinese ...

Add Yahoo as a preferred source to see more of our stories on Google. President Trump said Wednesday he directed the Pentagon to immediately start testing U.S. nuclear weapons for the first time since ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

BUSAN, South Korea — President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, saying it would be on an "equal basis" with Russia and ...

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...

Add Yahoo as a preferred source to see more of our stories on Google. A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) (U.S. Atomic Energy ...