In addition to the atomic bombings of Hiroshima and Nagasaki, the first nuclear test of a given weapon type for a country is included, as well as tests that were otherwise notable (such as the largest test …

President Donald Trump appeared to suggest Thursday that the U.S. will resume testing nuclear weapons for the first time in three decades, saying it would be on an “equal basis” with Russia and …

Jan 29, 2025 · A thousand feet beneath the desert, the United States conducts experiments to verify that its weapons work. But some fear a live test could come soon.

6 days ago · The U.S. conducted its last test 1992, and China conducted its last official test in 1996. Both nations have signed on to the Comprehensive Nuclear-Test-Ban Treaty, which prohibits nuclear …

Chronology of nuclear testing by the United States, Soviet Union/Russia, France, United Kingdom, and China.

U.S. Nuclear Weapons Tests tests at the Nevada National Security Site (NNSS). Since 1993, it has used a program known as Science-Based Stockpile Stewardship to maintain confidence in the …

Oct 30, 2025 · Tests provide evidence of what any new nuclear weapon will do - and whether older weapons still work. In 2020, the Washington Post reported that the administration of U.S. president …

Oct 18, 2022 · Nuclear tests are generally controlled explosions of nuclear devices, such as bombs or warheads. The tests are used to determine a device’s effectiveness, yield (amount of energy …

Through nuclear test explosions, the nuclear testing nations have been able to proof-test new warhead designs and create increasingly sophisticated nuclear weapons. The overwhelming majority of the …

The talk of testing comes at a time when nuclear weapons are resurgent: Russia is designing nuclear weapons to attack satellites and obliterate seaports; China is dramatically expanding its nuclear …