Gateway to Science announces NanoDays 2012 on Saturday, March 24 from 1PM-4PM. FREE Family Event. It’s the Biggest Event for the Smallest Science! There will be discovery stations for all ages to explore nanotechnology. NanoDays will be held at Gateway to Science in the Frances Leach High Prairie Arts & Science Complex located at 1810 Schfer Street, Bismarck. Mark your calendar NOW for Big Nano Fun!