Authorities are continuing the search for a tiny radioactive capsule lost along a 1,400km stretch of Western Australian desert highway. The 8mm by 6mm capsule fell from a secure device on a truck that was travelling from a Rio Tinto mine site, north of Newman in the Pilbara region, to Perth, where it was being sent for repair.

NASA selected a nuclear propulsion concept for Phase I development as part of its Innovative Advanced Concepts (NIAC) program for 2023. The Nuclear Thermal and Nuclear Electric Propulsion (NTP/NEP) concept is a new class of bimodal nuclear propulsion system that uses a "wave rotor topping cycle," as per a NASA blog post.

Eleven years after the Fukushima nuclear catastrophe, the region's inhabitants are preparing for a new step. Japan will soon start discharging treated water into the sea. Water that touched the fuel has become radioactive. Filtered in a plant within the power plant, it's kept in tanks that will reach their maximum capacity in 2023.

Five countries opposed the resolution on the 'risk of nuclear proliferation in the Middle East'.

The cost of decommissioning the UK’s 20th-century nuclear waste could rise to £260bn as the aged and degrading sites present growing challenges, according to analysis presented to an international group of experts. As the government pursues nuclear energy with the promise of a new generation of reactors, the cost of safely cleaning up waste from previous generations of power stations is soaring.

South Korea has warned North Korea's government that using its nuclear weapons would put it on a “path of self-destruction.”

California state lawmakers voted early Wednesday morning to keep the Diablo Canyon Nuclear power plant running. After an overwhelming majority vote, The plant will keep running till 2030 instead of 2025.

Storing radioactive waste above ground is a risky business, but the Swiss think they have found the solution: burying spent nuclear fuel deep underground in clay. The Mont Terri international laboratory was built to study the effects of burying radioactive waste in clay which sits 300 metres (985 feet) below the surface near Saint-Ursanne in the northwestern Jura region.

The UN secretary-general said nuclear war is "back within the realm of possibility" following Russia's warning it was putting its nuclear forces on alert amid its war in Ukraine that threatens to draw NATO into direct combat with Russia.

BIRTH defects and cancers blight the tortured people who have the misfortune of living in the world’s most radioactive places. More than seven decades on from the first atomic bomb tests, the fallout continues to wreak havoc with these communities.

What forms this iconic shape?

Slow rise in neutrons stirs concerns about possible “criticality” accident

President Donald Trump, with two months left in office, last week asked for options on attacking Iran's main nuclear site, but ultimately decided against taking the dramatic step, a U.S. official said on Monday.

The existential threat of nuclear war is no longer a Cold War memory. With nine countries armed with around 15,000 atomic bombs up to 53 times stronger than those dropped in the Second World War, the stakes are arguably higher.

Sixty-nine nations, however, have not signed it, including all of the nuclear powers such as the US, UK, Russia, China, France, India, Pakistan and North Korea, as well as NATO member states (apart from the Netherlands who voted against), Japan and Australia.

With a 50th nation ratifying it, the treaty outlawing nuclear weapons for all countries will come into force in 90 days

Contaminated water that will reportedly be released into the sea from the wrecked Fukushima Daiichi nuclear power plant contains a radioactive substance that has the potential to damage human DNA, a Greenpeace investigation has said.

Japan’s government has reportedly decided to release more than 1m tonnes of contaminated water from the Fukushima Daiichi nuclear power plant into the sea, setting it on a collision course with local fishermen who say the move will destroy their industry. Media reports said work to release the water, which is being stored in more than 1,000 tanks, would begin in 2022 at the earliest and would take decades to complete.

John Pilger's penetrating documentary which looks at world-wide propaganda surrounding the nuclear arms race. When the two American atomic bombs were dropped on Hiroshima and Nagasaki in 1945, they were code-named Fat Man and Little Boy, and President Truman announced after the event: "The experiment has been an overwhelming success."

Atomic bombs hastened the end of World War II. But they launched another kind of war, a cold one, that threatened the entire planet with nuclear annihilation. So it’s understandable that on the 75th anniversary of the atomic bomb explosion that devastated Hiroshima (August 6, 1945), reflections tend to emphasize the geopolitical dramas during the decades that followed.