What to know about tensions between Iran and the U.S.
A letter President Trump wrote to Iran's supreme leader in an attempt to jump-start talks over Tehran's rapidly advancing ...
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NATO Nuclear Sharing: Polish President Duda calls for US weapons deployment
Polish President Duda urges the US to transfer nuclear weapons to Poland, citing NATO's need to adapt its deterrence strategy ...
Radioisotope generators − inside the ‘nuclear batteries’ that power faraway spacecraft
Radioisotope thermoelectric generators do not rely on chemical reactions like the batteries in your phone. Instead, they rely on the radioactive decay of elements to produce heat and eventually ...
What If Ukraine Hadn't Given Up Its Nuclear Weapons?
Ukraine surrendered its Soviet-era nuclear stockpile more than three decades ago and experts have questioned whether Kyiv ...