The article by Ilmari Huttu-Hiltunen discusses Finland's approach to nuclear waste management, which involves the permanent storage of spent nuclear fuel deep within the bedrock. The Onkalo tunnel, excavated next to the Olkiluoto nuclear power plant, serves as the disposal site, where nuclear waste is sealed in copper canisters and buried 450 meters underground with bentonite clay and concrete. The article also mentions the Olkiluoto 3 reactor, one of the first EPR reactors and one of the most powerful in the world, which will contribute to the nuclear waste stored in Onkalo. Euronews has created a 360-degree interactive experience to showcase the reactor room of Olkiluoto 3 before it is loaded with nuclear fuel.