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Links and Show Notes: Support Liftoff with a Relay FM Membership Liftoff (@liftoffpodcast) / Twitter SpaceX succeeds with first untethered StarHopper low altitude ‘hop’ test | TechCrunch A “city-killing” asteroid just zipped by Earth. Why didn’t we see it coming? - Vox Tunguska event - Wikipedia NASA Says SLS Green Run Test is a Go – SpacePolicyOnline.com “Green Run” Test Will Pave the Way for Successful NASA Moon Missions | NASA Vice President Unveils NASA Spacecraft for Artemis 1 Lunar Mission | NASA Plum Brook Station | NASA NASA Taps Northrop Grumman to Build Lunar Gateway Habitation Module | Space Bigelow Aerospace - Gateway NASA Announces Industry Partnerships to Advance Moon, Mars Technology | NASA NASA agrees to work with SpaceX on orbital refueling technology | Ars Technica Private Company Orbit Beyond Drops Out of 2020 NASA Moon-Landing Deal | Space Commercial Lunar Payload Services Update | NASA Solar Sailing Success: Planetary Society Deploys LightSail 2 - Scientific American Made in Space wins NASA contract to 3D-print satellite structures in orbit – Spaceflight Now Christopher Columbus Kraft, NASA’s legendary flight director, has died | Ars Technica Remembering Chris Kraft | NASA "Flight: My Life in Mission Control" by Christopher Kraft