A nuclear escalation in the Middle East would trigger a global catastrophe. Know the physics behind nuclear weapons, and the ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

Next month it will have been 80 years since the Japanese cities of Hiroshima and Nagasaki were devastated by nuclear attacks. More than 200,000 people – mostly citizens – would die by the year's end ...

Add Yahoo as a preferred source to see more of our stories on Google. Russia is still escalating its nuclear threats as the war in Ukraine goes on. If a nuclear bomb were headed toward the US, ...

MUSCAT, Oman (AP) — A massive explosion and fire rocked a port Saturday in southern Iran purportedly linked to a shipment of a chemical ingredient used to make missile propellant, killing 25 people ...

When a nuclear bomb detonates, the devastation is immediate and terrifying. But outside the area of total destruction, the dangers don’t vanish—they change. In buildings that remain standing beyond ...

If President Donald Trump does decide to use the United States' largest conventional bomb to destroy Iran’s fortresslike Fordo nuclear enrichment facility, the colossal force of the explosion would ...

President Donald Trump’s recent call to resume U.S. nuclear weapons testing “on an equal basis” with Russia and China has reignited a decadesold debate about America’s nuclear posture and global ...