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(Nye County, Nevada)--When I visited the primary location for U.S. nuclear weapons testing, the Nevada Test Site, in September 1994 for the first time, whether the era of U.S. nuclear [...]

On a summer morning in 1953, soldiers evacuated all but a few farmers from a village in the Kazakh steppe without explaining the move. After the group departed, the farmers [...]

Twenty-three years after Russia ratified the Comprehensive Test Ban Treaty (CTBT), Moscow is 'unratifying' but not unsigning the pact as a by-product of its war on Ukraine and related tensions [...]

For 32 years, under Republican and Democratic administrations, the United States has observed a moratorium on explosive nuclear weapons testing. U.S. leadership prompted other countries to cease testing and to [...]

Afederal program that has aided thousands of people in communities harmed by U.S. nuclear testing and weapons production activities expired June 7, and it is unclear whether it can be [...]

North Korea is continuing to test new military systems and pledging to build up its nuclear arsenal further in response to U.S. and South Korean activities. On May 18, North [...]

Jeremy Cliffe on geopolitics Fractures will widen in the West Last year the Global West--the US plus its allies in Europe and the Pacific--showed unexpected resilience. In 2023, however, fractures [...]

Nearly 80 years have passed since the atomic bomb created by J. Robert Oppenheimer and the Manhattan Project was detonated secretly in central New Mexico. The Trinity explosion not only [...]

Twenty-five years ago this month, the U.S. Senate defeated the Comprehensive Test Ban Treaty (CTBT) by a party-line vote of 51 to 48. Nevertheless, President Bill Clinton pledged he would [...]

Most American voters may not realize it, but nuclear weapons testing may be on the ballot in November. The United States conducted the last of its 1,030 nuclear test explosions [...]

The U.S. National Nuclear Security Administration (NNSA) announced that it had successfully carried out a subcritical experiment on May 14 at an underground facility at the Nevada National Security Site. [...]

For a treaty that has never formally entered into force, the Comprehensive Test Ban Treaty (CTBT) has a very good success record. It opened for signature on September 24, 1996, [...]

India claimed a successful second night launch of its latest medium-range ballistic missile, the Agni-Prime (Agni-P), which it said can strengthen the country's deterrence capabilities. In an April 4 press [...]

Seventy years ago, on March 1, 1954, the United States detonated one of the most devastating and controversial of its 1,030 nuclear tests. Code-named 'Castle Bravo,' the 15-megaton atmospheric thermonuclear [...]

President Vladimir Putin signed a law revoking Russia's ratification of the Comprehensive Test Ban Treaty (CTBT), which has helped keep a lid on nuclear testing for 27 years. The law, [...]

Russia has completed construction of its 32nd and final seismic station designed to detect nuclear tests banned under the Comprehensive Test Ban Treaty (CTBT), and the facility is now in [...]

President Bill Clinton's July 3, 1993, decision to extend the U.S. nuclear test moratorium and seek to negotiate the Comprehensive Test Ban Treaty (CTBT) halted plans for the next nuclear [...]

Preparations might be underway for North Korea's first nuclear test since 2017, U.S. intelligence agencies concluded in their annual threat assessment. North Korea 'probably is preparing to test a nuclear [...]

After months of wrangling, negotiators from the United States and the Republic of the Marshall Islands signed a memorandum of understanding (MOU) on a new Compact of Free Association agreement [...]

A team led by the U.S. National Nuclear Security Administration (NNSA) conducted an experiment using chemical high explosives and radiotracers in an underground tunnel on Oct. 18 to 'validate new [...]

New construction at nuclear test facilities in China, Russia, and the United States has heightened global apprehension that one or more of these nations potentially could resume nuclear testing. A [...]

Physicists who masterminded the first U.S. nuclear test, the 'Trinity' plutonium implosion in New Mexico in 1945, and subsequent tests in Nevada had little idea how strong the blasts would [...]

More than 30 years ago, citizen activists and independence leaders in Kazakhstan forced Russia to halt nuclear testing, prompting the United States, under pressure from U.S. activists and members of [...]

U.S. lawmakers agreed in December to drop dueling House and Senate defense bill provisions on nuclear test explosions prompted by reports last spring that the Trump administration had discussed a [...]

Russia simulated launches of nuclear weapons during military exercises in the Kaliningrad enclave in May, according to its defense ministry, even as Russian diplomats attempted to downplay the likelihood of [...]

On the day before my seventh birthday, which I spent at my grandma's in Yorkshire, a young man named Raymond Jones walked into North End Music Stores in Liverpool and [...]

The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) Preparatory Commission launched a large-scale simulation of an on-site inspection in Jordan on November 3, 2014, to test the organization's ability to find a [...]

The explosion sent irradiated coral dust throughout the atolls. Neighboring atoll populations, who were neither informed of the tests nor relocated prior to the detonation, today continue to experience health [...]

For the first five decades of the nuclear age, nuclear weapons test explosions were the most visible symbol of the dangers of nuclear weapons and the omnipresent threat of nuclear [...]

Adlai stevenson, the democratic presidential candidate in 1952 and 1956, has been called 'the first national political leader to take a clear-cut position for the limitation of [nuclear weapons] testing.' [...]

North Korea declared on Jan. 6 that it had successfully conducted a test of a hydrogen bomb earlier that day, sparking a mix of condemnation and skepticism around the world. [...]

When President Bill Clinton described the Comprehensive Test Ban Treaty (CTBT) as 'the longest-sought, hardest fought prize in arms control history,' he was not exaggerating. In the face of international [...]

The world's first nuclear test, 'Trinity', took place on 16 July 1945, in a torrid desert in New Mexico which the Spanish Conquistadores had named Jornada del Muerto (Journey of [...]

As the likelihood increases that the Comprehensive Test Ban Treaty (CTBT) will get a new look in the Senate and perhaps advance closer to entry into force in the Obama [...]

SEMIPALAT1NSK, KAZAKHSTAN -- It was a clear and sunny day when the earth shook in Arcania. Several seismic stations that are part of the International Monitoring System (IMS) that is [...]

In October 1999, the U.S. Senate declined to consent to ratification of the 1996 Comprehensive Test Ban Treaty (CTBT). Although the floor debate itself was so short as to be [...]

Ten years ago, the governments of India and Pakistan tested nuclear devices, prompting a global uproar, a united front by the five permanent members (P-5) of the UN Security Council, [...]

Since North Korea's nuclear test on October 9, 2006, there has been considerable foreign speculation that the explosion might prompt Japan to develop its own nuclear weapons arsenal. These views [...]