Samples of "trinitite" created during the world’s first nuclear bomb test in 1945 contain unique crystals never seen before.

Energy Secretary Chris Wright issued a stark warning to lawmakers on Wednesday, revealing that Iran is now “frighteningly ...

By Daniel Trotta May 12 (Reuters) - U.S. President Donald Trump said on Tuesday that Americans’ financial struggles are not a ...

WASHINGTON — Energy Secretary Chris Wright warned Wednesday that Iran is “frighteningly close” to developing weapons-grade ...

Chinese foreign ministry earlier in the day issued a statement, condemning the war, saying it "should never have happened" ...

Letter writers discuss Iran nuclear enrichment, President Trump and White House Correspondents’ Association Dinner.

US President Donald Trump arrived in Beijing on Thursday for high-stakes talks with Chinese leader Xi Jinping, as tensions ...

An Iranian flag flutters in the Islamic republic in 2010 next to a surface-to-surface Qiam-1 (Rising) missile, which was test fired a day before Iran was due to launch its Russian-built first nuclear ...

The White House said on Wednesday that President Donald Trump and Chinese President Xi Jinping agreed during a bilateral ...

US officials have said a nuclear detonation would render portions of low-Earth orbit useless for up to a year.

Bringing Israel’s nuclear deterrent into the light strikes at the core of the Israeli-American defense bargain.