Scientists have used satellite data to determine the size of the bomb North Korea detonated in 2017. Results suggest it could have been twice as powerful as U.S. intelligence predicted at the time.
Orphans of the bomb share their stories 75 years on.
Rescuers in Japan are digging through mud and rubble, racing to find survivors after torrential rain unleashed floods and landslides that killed at least 112 people, with around 78 still missing.
The atomic bombs killed hundreds of thousands of people and ended World War II.
Do the threats from the Islamic State justify taking the risks and paying the costs to change it?
He must decide whether to continue certifying the deal and waiving sanctions against Tehran.
The current estimated price tag is $1.74 trillion over three decades.
The work reflects "the duality of creation and destruction as well as the beauty and disaster that our civilization has created."
What if humans could take over meteor showers and make them perfect Instagram fodder?
Japan is the only country ever attacked with a nuclear weapon, and more than 72 years later it has the ability to build a bomb of its own.
Tokuko Kimura was 10 years old when she became victim to the second of the only two nuclear attacks in history and 72 years later she's fighting to ensure it never happens again.
The president's aggressive language Tuesday was eerily similar to the 33rd commander-in-chief's.
Despite the U.S.'s deadly atomic bomb attacks on Japan during World War II, the two countries mostly see eye to eye on North Korea.
The U.S. president greeted survivors of the first-ever atomic bombing and made a landmark speech.
Obama is the first U.S. president to visit the city since its bombing in 1945.
The visit on Friday has stirred debate, with critics accusing both sides of having selective memories.
President reiterates he won't apologize for decision in 'the midst of war' to drop bomb.
Will become first sitting U.S. president since World War II to visit the Japanese city hit by an atomic bomb.
A nuclear war would be so devastating, any attempts to survive it would be futile.
Tens of thousands died instantly when the U.S. dropped an atomic bomb on Hiroshima on Aug. 6, 1945.
Sergey Naryshkin said that the bombings were not founded on humanitarian considerations or military necessity.
As soon as the bombs were dropped, the men who invented them began searching their consciences.