Have you ever wondered what happens in that unusual building with the tent-like roof at the Inner Harbor? Science happens! The Institute of Marine and Environmental Technology (IMET), opens its doors for a free Open House on Saturday, May 4, 1-4 p.m. Enjoy hands-on science activities for kids of all ages, meet our scientists, and discover important marine research happening at the harbor’s edge. Visit imet.usmd.edu/events for details.