The traditional method of outreach to formal, informal, science and non-science audiences has undergone a fundamental change with recent advances in technology, social media and crowd-sourced data, giving way to citizen science with many applications, including the recent Total Solar Eclipse 2017 (U.S.A.) and 2019 (Chile, Argentina); ground-based pro-am observer synergies for missions (e.g., ESA/Rosetta, NASA/Juno); and self-organized citizen campaigns (comets, moon, etc.). With increasing “Big Data” projects, active partnerships between professional, amateur and data scientist communities are necessary. Innovative design, sustainability and evaluation of these projects is as important as the citizen science they generate. This session builds on these projects and invites papers from scientists, educators and as well as those who design, facilitate, evaluate or fund such programs. Topics may include methodology, applications of citizen science to enhancing outreach, transformative approaches to science education. Presentations are invited from all scientific disciplines of astronomy, planetary and space science, geology and geophysics, seismology, atmospheric and ocean sciences.