Buried in Deep Time: Finland Turns 1.9 Billion-Year-Old Rock Into a Forever Home for Nuclear Waste
Deep beneath the forests of Finland, engineers are preparing to activate a facility that sits inside one of the most geologically stable places on Earth—a bedrock formation near Olkiluoto estimated to be around 1.9 billion years old. The project, known as Onkalo, is the world’s first full-scale permanent deep geological repository for high-level nuclear waste. […]










