Nuclear waste remains radioactive for thousands of years. Burying it underground in an enormous repository, called Onkalo, surrounded and secured by solid rock is the long-term solution Finnish authorities implement right now. Once the repository is filled up, it will be locked up forever and never opened again. At the same time three new nuclear power plants are built. Out of Sight, out of Mind? Ultimately, this raises questions: Can this be the solution for final disposal of nuclear waste? How do we understand a problem clearly exceeding our capabilities as human beings? How do we deal with the dilemmas of uncertainty, invisibility, time, demand, possible contamination, and our individual responsibility as human beings? Understanding Thro...