Mark Vagins is a Professor of Physics at the University of Tokyo’s Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU). He also holds a joint appointment as an Adjunct Professor of Physics & Astronomy at the University of California, Irvine. Mark has spent the past twenty-four years in the field of astrophysical neutrinos, including sixteen years as the American convener of Super-Kamiokande’s solar and supernova neutrino group. Mark’s research is focused on developing new methods of observing neutrinos, both through the enhancement of existing detectors like Super-Kamiokande and via the design and construction of future facilities. One of his main goals is to measure, for the first time, the diffuse supernova neutrino background (DSNB), often called the“relic” supernova neutrinos. As co-spokesperson of WATCHMAN, he is also a leader in the new field of using antineutrinos for remote reactor monitoring in a non-proliferation context. Mark has been an EAC member since the Spring of 2015.