Tags Open Lines National Geographic Genius Take Me Back SpaceX Dragon capsules Falcon 9 Falcon Heavy SpaceX reusable components inventory Mars radiation studies Dr. Robert Zubrin Dr. Francis Cucinotta August solar eclipse Michael Livingston Amanda Dreschler Icarus Starship Congress Moonwards Kim Holder self-replicating 3D printer ISDC revised Integrated Space Plan ESA Lunar Village Outer Space Treaty 1971 NASA shuttle video Mars restoration SLS time travel Einstein Airship to Orbit (ATO) ATO drag ATO commercial reality human genetic alteration Guest Dr. David Livingston Tagline Special Start Time: 11:30 AM PDTOpen Lines - You talk about what you want to discuss on this show View the discussion thread.