Drawing input from eight European research institutions, and with a budget of €3m over three years from the EU’s Horizon 2020 programme, the project will produce a groundbreaking design for a second source of ESS neutrons. As a result, it will show how the ESS can be not only the most brilliant neutron source in the world, but also the most intense, able to probe everyday materials and tackle fundamental questions in physics with up to 1,000 times the sensitivity found anywhere else.