IRG 2021 Our 7th Interstellar Symposium took place September 25-27, 2021 (with pre-symposium seminars taking place on the 24th) in Tucson, AZ at the Tucson Marriott University Park. This symposium directly followed the NASA NIAC symposium (held virtually for 2021) and took place along with the “Art of Planetary Science” art show. IRG 2021 Seminars IRG 2021 Posters IRG 2021 Impressions (your impressions) IRG 2021 Agenda IRG 2021 Keynote Speakers 2021 Presentation Video Archive IRG 2021 Participants IRG 2021 Working Tracks 2021 Symposium Live Stream Patrons for the 7th Interstellar Symposium Galactic patrons with red text, Interstellar patrons with orange text, Planetary patrons with yellow text, and Lunar patrons with green text University of Arizona Limitless Space Institute Pima County Breakthrough Initiatives Baen Books AGM Precision Machining Rob Hampson Joseph Meany Arizona Technology Council Boostphase Brodeur Partners Nexolve Phantom Space Ken Roy Martha Knowles Visit Tucson Chris Mooney Photography James EarlyHenry Cate Thomas WicklundPhilip Lubin