These clips are from shot Grable, the Atomic Cannon test in 1953 showing the initial burst and shockwave. Identified also are the various vehicles on the desert floor which are very, very tiny compared to the fireball of the blast. There are cars, jeeps, buses and tanks under the blast area. I have put a title over a frozen frame to be able to see the positions of the vehicles. Can anyone find the bird?

President Obama has made his share of foreign policy mistakes, particularly in the Middle East. But it’s ironic that Republican critics now hammer him hardest over his nuclear deal with Iran, a bet that has already paid out for those who want to undermine Iran’s hard-liners. Elections for Iran’s parliament and its Assembly of Experts–which picks the nation’s Supreme Leader–were hardly free and fair. Conservatives managed to block..

Russia has warned North Korea that threats to deliver “preventive nuclear strikes” could create a legal basis for the use of military force against the country, suggesting that even Pyongyang’s few remaining friends are growing concerned about its increasingly confrontational stance. The Russian foreign ministry statement, which follows a North Korean threat to “annihilate” the US and South Korea, also criticises Washington and Seoul...

Kim Jong-un has said North Korea will soon conduct tests of nuclear warheads and ballistic missiles. He said the tests would "enhance the reliance" of the North's nuclear attack capability, state media reported. The North has issued a series of increasingly bellicose threats in the wake of sanctions imposed after nuclear and missile tests earlier this year. But though it is known to have nuclear weapons, many analysts...

A U.S. official has told CNN that Iran has the ability to launch a three-stage rocket with a satellite on top "at any minute." It would be Iran's first ever launch of this configuration, and like the North Korean test earlier this year, would give Iran further insights into intercontinental ballistic missile technology. The assessment followed reports in Iran's state media that it had test-fired two ballistic missiles last Wednesday.

North Korea successfully tested a solid-fuel engine that boosted the power of its ballistic rockets, state media reported on Thursday, as South Korea's president ordered the military to be ready to respond to the North's "reckless provocation". Pyongyang's claim indicates it is continuing to develop an intercontinental ballistic missile (ICBM) at a rapid pace in defiance of U.N. sanctions, and amid assessment by the South's officials that it could conduct a new nuclear test at any time.

Some U.S. intelligence analysts now believe that North Korea "probably" possesses a miniaturized nuclear warhead, several U.S. officials told CNN. The assessment has yet to become a formal consensus view of the U.S. government. But it reveals just how far along many in the U.S. believe the reclusive country has come to gaining a nuclear-tipped ballistic missile that could potentially strike the U.S.

Japanese regulators on Wednesday approved the use of a giant refrigeration system to create an unprecedented underground frozen barrier around buildings at the wrecked Fukushima nuclear plant in an attempt to contain leaking radioactive water. The Nuclear Regulation Authority said the...

Satellite images suggest "significant activity" is taking place at a North Korean laboratory that could separate plutonium for nuclear weapons. The photos appear on 38 North, a US website that monitors sensitive sites in the country. The website says that during the past five weeks exhaust plumes have been seen two or three times at the radiochemical laboratory complex at Yongbyon.

North Korea said Saturday it had successfully tested an engine designed for an inter-continental ballistic missile (ICBM) that would "guarantee" an eventual nuclear strike on the US mainland. It was the latest in a series of claims by Pyongyang of significant breakthroughs in both its nuclear

At first glance, it’s hard to know what’s happening in this picture. A giant mushroom seems to have sprouted in a factory floor, where ghostly men in hardhats seem to be working. But there’s something undeniably eerie about the scene, for good reason. You’re looking at the largest agglomeration of one of the most toxic substances ever created: corium.

Georgia's security service said on Monday it had detained six Georgian and Armenian citizens who were trying to sell $200 million worth of uranium-238. Georgia's security service did not say whether the group had a buyer for the uranium. Nor did it say where the group had acquired it. However, Georgia is a former member of the Soviet Union, and world leaders have been concerned about the security of Soviet nuclear weapons since it broke up in 1991.

A solid-fuel rocket engine North Korea tested in March was built with technology from Iran, an Israeli analyst said. Tal Inbar, of Israel's Fisher Institute for Air and Space Strategic Studies, said Pyongyang has also made significant progress in developing ballistic missile technology, Voice of America reported Tuesday. Inbar made the statements at a congressional briefing addressing the "ballistic axis," a reference to Iran's and North Korea's space program.

Activities at North Korea's Punggye-ri nuclear site are showing Pyongyang is getting ready for its fifth nuclear test, which could happen as early as Saturday. U.S. and South Korea military surveillance captured the movements showing all preparations are complete, local television network SBS reported. Satellite imagery showed a significant number of vehicles along with other equipment were no longer visible on site.

It will be 30 years ago Tuesday that Pripyat and the nearby Chernobyl nuclear plant became synonymous with nuclear disaster, that the word Chernobyl came to mean more than just a little village in rural Ukraine.

The visit has been debated within the White House, with President Obama reluctant to be seen as apologizing to Japan. “He will not revisit the decision to use the atomic bomb at the end of World War II,” an aide said.

As it seeks to modernize its nuclear arsenal, the United States faces a big choice, one which Barack Obama failed to mention during his moving Hiroshima speech on May 27.The Conversation Should we spend a trillion dollars to replace each of our thousands of nuclear warheads with a more sophisticated substitute attached to a more lethal delivery system? Or should we keep only enough nuclear weapons needed for a devastatingly effective deterrence against any nuclear aggressor, investing the money saved into other means of making our nation more secure?

North Korea may be significantly expanding its nuclear weapons production and could have added six or more weapons to its stockpile in the last 18 months, a U.S. research institute said on Tuesday. The Washington-based Institute for Science and International Security (ISIS) estimated last year that North Korea had 10 to 16 nuclear weapons at the end of 2014. It based that conclusion on an analysis of the country's production of weapons-grade uranium and plutonium recovered from spent nuclear fuel.

A picture in the state-run Rodong Sinmum newspaper shows the leader watching a missile test alongside his generals. The map in front of him charts the trajectories of three missiles tested by North Korea in a practice nuclear strike this week. But it might also reveal the first target he wants to annihilate with his nukes – and it's a city that's home to several million people.

North Korea is celebrating the launch of a ballistic missile from a submarine. Regime leader Kim Jong Un says his nuclear weapons can now strike the US mainland. Should Americans be worried?