SpaceX Gears Up for Crucial Propellant Transfer Test in Starship Moon Mission Prep
SpaceX is set to attempt a groundbreaking propellant transfer between orbiting Starships by March, marking a key milestone in its preparation for an uncrewed moon landing demonstration. This test is crucial for NASA’s Artemis program, which aims to return humans to the lunar surface.
Under a $4.05 billion contract with NASA, SpaceX is developing two human-rated Starship vehicles for the Artemis program. The crewed moon landing is currently scheduled for September 2026, highlighting the rapid progress of the project.
Kent Chojnacki, NASA’s Human Landing System (HLS) program deputy manager, recently shared insights into the space agency’s collaboration with SpaceX. NASA is closely monitoring Starship’s test campaign and recent achievements, adopting a different approach compared to its Space Launch System (SLS) program.
The SLS program, known for its traditional approach and cost-plus contracts, launched its first rocket for the Artemis I mission in December 2023. However, the high costs and non-reusability of SLS rockets have drawn criticism.
In contrast, the HLS program utilizes fixed-price contracts, with SpaceX’s agreement including 27 system requirements. This flexible contract allows for additional proposed milestones as development progresses.
A critical upcoming test is the ship-to-ship propellant transfer demonstration, scheduled for March 2025. Success in this area is vital for future missions, potentially enabling the transport of large payloads beyond Earth’s orbit.
Looking ahead, a Critical Design Review (CDR) is set for Summer 2025, where NASA will certify SpaceX’s compliance with system requirements. Monthly meetings between NASA astronauts and SpaceX ensure continuous input on the project’s development.
At SpaceX’s Boca Chica facility, crew cabin mockups are being constructed, with NASA providing input on the design and testing of cryogenic components and thermal tiles. An updated design is expected to be presented at the CDR.
SpaceX remains committed to its ambitious goal of landing astronauts on the moon by September 2026. While progress is steady, the company acknowledges the need to demonstrate several first-time technologies. However, no major roadblocks have been identified thus far, keeping the project on track for its historic lunar mission.