The non-partisan Congressional Budget Office estimates the price of U.S. nuclear weapons will jump to nearly $1 trillion by ...

Cosmos 2553 is one of dozens of Russian satellites with suspected ties to its military and intelligence programs.

The non-partisan Congressional Budget Office's estimate does not include recently discovered cost overruns in the Sentinel ...

The third round of talks in three weeks have raised hopes for an Iran nuclear accord, which could avert a new Mideast ...

The hydrogen bomb stands as the most fearsome weapon mankind has ever built. A standard atomic bomb—like the ones the United ...

Washington opposes Tehran’s insistence on retaining the ability to enrich uranium, as the two sides meet in Oman for a third ...

The United States and Iran were expected to start haggling over details of a potential nuclear deal in Oman on Saturday as ...

US Secretary of State Marco Rubio said Wednesday that the US does not envision Iran enriching its own nuclear material, but ...

The talks seek to limit Iran's nuclear program in exchange for the lifting of some of the crushing economic sanctions the U.S ...

President Donald Trump has repeatedly threatened to unleash airstrikes targeting Iran’s program if a deal is not reached.