Defense

The Pentagon has started releasing files related to unidentified anomalous phenomena (UAP), also called UFOs. Here are the images released so far

Ghost Murmur was described as a futuristic CIA tool that could detect a heartbeat from vast distances. Physicists say the public story clashes with the basic limits of magnetic sensing

Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the country to do so

The Trump administration’s war with Iran over its nuclear ambitions raises new questions about the country’s uranium stockpile

As Anthropic releases its most autonomous agents yet, a mounting clash with the military reveals the impossible choice between global scaling and a “safety first” ethos

Sources say an Army antidrone laser near Fort Bliss prompted a brief FAA airspace closure—spotlighting the hazards of battlefield technology in civilian skies

“Kryptos has not been solved,” said artist Jim Sanborn after releasing his parting clues to the “K4” section of his sculpture puzzle

“The only countries that will really learn more if [U.S. nuclear] testing resumes are Russia and, to a much greater extent, China,” says Jeffrey Lewis, an expert on the geopolitics of nuclear weaponry

Russian leader Vladimir Putin claimed his nation conducted a successful flight of a nuclear-powered cruise missile. Here’s how that missile might work

A sweeping U.S. missile defense program comes with many risks, costs and uncertainties, analysts say

The White House has now fully embraced bomb-prone nuclear fuel technology. This should stop before an arms race, atomic terrorism or even nuclear war results

Nuclear policy specialist David Albright explains how his organization is monitoring for damage to nuclear sites following U.S. and Israeli strikes