3 November 2025

Skyfall Nuclear-Powered Cruise Missile Long-Range Test Claimed By Russia

Thomas Newdick

Russian Ministry of Defense screencap

Weekly insights and analysis on the latest developments in military technology, strategy, and foreign policy.

Russia has said that it conducted a long-awaited test of its mysterious Burevestnik (also known to NATO as SSC-X-9 Skyfall) cruise missile last week, claiming that it flew for 8,700 miles. The missile, which is nuclear-powered, is said to have remained in the air for around 15 hours. For the time being, we don’t know if those statements are factually accurate, and details about how the missile actually works remain very scarce. However, the claimed test has led to boasts about the missile’s performance from Russian President Vladimir Putin, while his U.S. counterpart, Donald Trump, called upon Putin to end the war in Ukraine “instead of testing missiles.”

Russia’s Chief of the General Staff, Valery Gerasimov, told Putin yesterday that a successful test of the Burevestnik was carried out on October 21. Gerasimov said that the 15-hour flight “is not the [maximum] limit” for the missile. Regardless, if true, this would appear to be the first long-endurance test of the missile.Russian President Vladimir Putin shakes hands with Chief of Staff Valery Gerasimov during a meeting earlier this month in Saint Petersburg. Photo by Mikhail METZEL / POOL / AFP MIKHAIL METZEL

In response to Gerasimov’s remarks, Putin commented: “I remember vividly when we announced that we were developing such a weapon, even highly qualified specialists told me that, yes, it was a good and worthy goal, but unrealizable in the near future. This was the opinion of specialists, I repeat, highly qualified. And now the decisive tests have been completed.”

The Russian president was referring to the revelation of the Burevestnik’s existence back in 2018. It was one of six ‘super weapons’ that also included hypersonic weapons and a nuclear-powered, nuclear-armed torpedo.

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