Reports that billionaire Elon Musk has held multiple calls with Russian officials, including President Vladimir Putin, should ...

A year later, the U.S. and the Soviet Union signed the Partial Test Ban Treaty, formally making nuclear weapons in outer space taboo. Earlier this year, reports of Russia developing a nuclear ...

A Russian rocket launched a pair of Iranian satellites on Tuesday, reflecting growing cooperation between Moscow and Tehran ...

In a letter seen by Reuters on Nov. 15, two senior Democratic senators argued that Musk’s involvement in SpaceX programs ...

Alarming satellite images appear to show Russia’s R-30 Bulava intercontinental ballistic missile (ICBM), a key element of the Russian nuclear arsenal, being deployed on nuclear-powered ballistic ...

Uranium prices gained on Friday after Russia imposed temporary restrictions on the export of enriched uranium to the United States.

"At the same time, the support that Russia is providing to North Korea, potentially including support for its nuclear and missile programs, poses a threat to civility and security in the Korean ...

North Korea's latest launch of an intercontinental ballistic missile on Oct. 31 underscores the unusual aircraft's importance ...

Russia’s new nuclear statement does not mention Ukraine ... The new statement has further widened the category to include “massive launch of air and space attack weapons” such as “aeroplanes of ...

Russia's military loaded one of its intercontinental ballistic missiles (ICBMs) that can be armed with nuclear warheads into a launch site at a missile base in Western Russia, according to Moscow ...

The US Space Force was set to launch an unarmed ... But Putin also warned the US and NATO that Russia would use nuclear force should the nation be directly attacked by a non-nuclear country ...