The National Nuclear Security Administration (NNSA) said it completed ‘Diamond stamping' of the new B61-13 nuclear bomb, ...

The US carried out the Starfish Prime test by detonating a 1.4-megaton thermonuclear bomb about 400 kilometres above Earth.

VIENNA (Reuters) - Two months after what is widely believed to have been a nuclear test by North Korea, the radioactive particles to prove it have yet to be detected, suggesting the communist state is ...

A top Trump administration official on Tuesday disclosed new details to support its claim that China conducted an underground nuclear explosion during Donald Trump’s first presidency, a contested ...

China's first such test since 2024 took place amid warnings from Australia and New Zealand.