Main Engine Cut Off T+328: Pam Melroy, Former NASA Deputy Administrator and Space Shuttle Commander
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Apr 9, 2026 Pam Melroy, three-time Space Shuttle commander and former NASA deputy administrator. She discusses Artemis program choices, Gateway versus surface dynamics, domestic political and budget pressures, commercial LEO strategy, Starliner and Mars Sample Return program challenges. Short, candid reflections on leadership, long timelines, and what fixes might keep US human spaceflight on track.
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Leaving Industry After Constellation Cancellation
- Pam Melroy recounts being at Lockheed Martin when Constellation was canceled and later coming to Washington to understand why.
- She says canceling programs doesn't speed things up and prefers trying to fix problems rather than cancel.
Mass Delivery Is The Real Moon Base Bottleneck
- Starting a sustained lunar base requires landing large mass on the Moon, not just small science payloads.
- Melroy warns 500–1000 kg (like CLPS landers) is far too little to begin a base; cargo landers and refueling are key constraints.
Gateway Solved Technical And Partnership Constraints
- Gateway arose partly to solve delta‑v and communications limits of Orion and SLS constraints.
- Melroy notes partners had contracts tied to Gateway, making it politically hard to abandon.