A website that lets users simulate a nuclear attack has seen an uptick in users amid the ongoing war with Iran.

Iran says a projectile struck the grounds of the plant but the report hasn't been confirmed independently. No one was hurt.

Russia will continue to observe the limits set under the recently-expired New START nuclear arms reduction treaty if the United States does the same, Russian Foreign Minister Sergey Lavrov said ...

Fears of a renewed arms race are echoing around the world once again, ignited by last month’s expiration of New Start, the last treaty limiting U.S. and Russian nuclear arsenal deployment. This week, ...

There has not been a major (or minor) nuclear explosion since the 1960s. This is almost entirely because ...

WASHINGTON – A 15-year-old treaty that has limited how many nuclear weapons the United States and Russia can maintain comes to an end this week, as experts warn that no new agreement could portend a ...

The last remaining nuclear arms pact between Russia and the United States expires Thursday, removing any caps on the two largest atomic arsenals for the first time in more than a half-century.The ...

Russia has issued a warning to its neighbor Finland regarding the potential placement of nuclear weapons on Finnish soil. Moscow responded angrily to the Nordic nation - a NATO member - moving to ...

An ally of Russian President Vladimir Putin has warned that Russia would use nuclear weapons against Europe if it ever found itself close to defeat. Sergey Karaganov, honorary chairman of Moscow's ...