In a feature for El País, Bruno Martin reports the story of KATRIN's 17-year design, construction and transport phases. The experiment that will measure the neutrino's mass has started commisioning this year, and will beging using tritium at full capacity in the Spring of 2019.
Photo: KATRIN's main spectrometer reaches the German town of Eggenstein-Leopoldshafen in 2006
Photo credit: Karlsruhe Institute of Technology