Semipalatinsk was the primary nuclear testing ground of the Soviet Union. Between 1949 and 1989, hundreds of atomic and ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

It began in an era when the night sky was pristine, long before the metallic glint of satellites and the clutter of orbital debris. Between 1949 and 1957, the Palomar Observatory’s first all-sky ...

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 ...

President Donald Trump on Wednesday announced on his social media site that the “process will begin immediately” to resume testing of nuclear weapons. “Absolutely not. I’ll be introducing legislation ...

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, ...

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 bomb, but come as Washington's ...

CFR scholars provide expert analysis and commentary on international issues. Erin D. Dumbacher is Stanton nuclear security senior fellow at the Council on Foreign Relations. President Donald Trump ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

The U.S. conducted above-ground nuclear tests at the Nevada Test Site 65 miles northwest of Las Vegas from 1951 until 1962. (Public domain) Donald Trump Wednesday announced on his social media site ...