A Russian state corporation has released previously-classified footage documenting the development and detonation of the legendary ‘Tsar Bomba’ hydrogen bomb in celebration of 75 years of Russia’s nuclear industry.

The footage, which comes during a 40-minute Soviet-style propaganda film, was released on the YouTube channel of the Rosatom State Atomic Energy Corporation, the state-run Russian nuclear energy concern, on Aug. 20. https://64fb132be3d3daa17d6f50ca958e5a3f.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html?n=0

The film details the long march of the Tsar Bomba — the informal name given to the RDS-220 hydrogen bomb by Western observers of the Soviet Union — from its transport by steam train to Olenya Air Base in northwest Russia to its final detonation above Novaya Zemlya on Oct. 30, 1961.

More importantly, it provides never-before-seen shots of the actual Tsar Bomba explosion, which had an estimated yield of around 50 megatons, or 50 million tons of TNT, in exquisite detail compared to previously-released footage of the detonation.