LEAD, SD - JULY 8, 2016 -- NEUTRINO DAY -- Jason Crusan, Director, Advanced Exploration Systems Division at NASA, speaks at the Historic Homestake Opera House in Lead, S.D. Friday evening. Crusan spoke about NASA and the Mars 2030 Experience as a part of the Neutrino Day Science Festival presented by the Sanford Lab. (Photo by Richard Carlson/dakotapress.org)