US sheds light on its allegation of Chinese nuclear test and urges nations to push for disarmament

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

Exclusive: US intelligence agencies tie Chinese explosive test to push for a completely new nuclear arsenal

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

US offers more details on claim China conducted secret nuclear weapons test

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.

Nuclear test or natural disaster? The science behind Iran's 4.3 magnitude earthquake

After a 4.3 magnitude earthquake hit Khonj, speculation of a secret Iranian nuclear test erupted. We break down the seismic signatures, enrichment levels, and expert analysis to determine if Tehran ...
Opinion
NatureOpinion

Nuclear weapons testing is harmful — there’s no case for a restart

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

Fact Check: Video Shows A 1957 Nuclear Test In U.S. NOT In Iran -- No Evidence Earthquake In Gerash Region Was Caused By Nuke

Does a video show a nuclear test carried out by the Islamic Revolutionary Guard Corps (IRGC) in Iran? No, that's not true: The video clip shows a nuclear test in the Nevada desert in 1957. The ...