Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

Intelligence agencies are supposed to speak truth to power. Top intelligence officials failed that test in their testimony ...

LONDON - In the nuclear medicine department of London's University College Hospital, patients pass through polished corridors ...

The test comes as the Trump administration is pushing for the deployment of a next-generation missile defense shield.

North Korean leader Kim Jong Un has overseen tests of newly developed AI-powered suicide drones and called for their ...

North Korea says leader Kim Jong Un observed tests of newly developed reconnaissance and attack drones this week and called ...

The envoy, Kirill Dmitriev, said Moscow could discuss the offer with Musk by video conference. It was the second time ...

Ukraine's European allies did not all agree today on the proposed deployment of troops in the country to back up an ...

British and US nuclear history is irrevocably interwoven. The US and UK cooperated on the Manhattan project, under the 1943 ...

North Korea is stepping up its air defenses as it unveils a new aircraft equipped with a powerful radar for surveillance and ...

The FTX-40 test, or “Stellar Banshee,” served as a validation for modern hypersonic missile tracking satellites, upgraded ...