California 2004 – Oklahoma City, Oklahoma 2005 – Washington, D.C. 2006 – Los Angeles, California 2007 – Addison, Texas 2008 – Washington, D.C. 2009 – Orlando, Florida 2009 conference website 2010 - Chicago, Illinois 2011 - Huntsville, Alabama 2012 - Washington, D.C. 2013 - San Diego, California 2014 - Los Angeles, California 2015 - Toronto, Ontario 2016 - San Juan, Puerto Rico 2017 - St. Louis, Missouri 2018 - Los Angeles, California 2019 - Arlington, Virginia See also List of astronomical societies References External links International Space Development Conferences, links to each year's conference International Space Development Conference 2013 website Archived webcasts from previous ISDCs Official Space Day website of activities National Space Society website Astronomy organizations Space organizations International scientific organizations Non-profit organizations based in the United States Scientific organizations based in the United States Space advocacy Space colonization Organizations established in 1982 1982 establishments in California