North Korea said on Wednesday it had successfully tested a new type of intercontinental ballistic missile (ICBM), called Hwasong-15, that could reach all of the U.S. mainland.
A look at the possible impact of President Trump's latest announcement on the Iran nuclear deal.
Nine countries hold a total of 14,900 warheads, according to the Nobel Peace Prize winner, the International Campaign to Abolish Nuclear Weapons (ICAN)
With rising international tensions over North Korea’s nuclear ambitions, a decision will soon be made on whether a strategic cyber attack will be used against the rogue nation.
Sniffer planes fly through fly through clouds of radioactive debris to collect air samples and catch dust and detect possible nuclear explosions.
North Korea has conducted its sixth nuclear device test.
This map shows the best estimates of which countries have nuclear weapons and how many they have.
Tim Roughgarden, professor of computer science at Stanford, explores how game theory can be used to understand war and the actions of nation states.
These new key findings from Pew Research Center examine the views of North Korea and its nuclear program.
Complex pressures are challenging many traditional alliances in the region.
As North Korea has almost always beaten our expectations of the level and speed of its technological development, so it will again in the future.
North Korean tests are destabilizing the non-proliferation regime that has kept the world in balance for nearly 50 years.
The US spends more on its military than the next 7 countries combined
A group of scientists behind the "Doomsday Clock" have symbolically moved its time 30 seconds closer to midnight.
There is a dark side to technological change, and we need to act now to stop it from becoming a threat to our international security.