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NASA Pushes Artemis Moon Missions to 2026 and 2027 Over Heat Shield Concerns

NASA delays Artemis II to April 2026 and Artemis III to mid-2027 due to heat shield charring discovered during the Artemis I test flight, adding 15 m…

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Sarah Voss

Jun 20•2 min read

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NASA has delayed the Artemis II crewed lunar flyby from September 2025 to April 2026, and Artemis III’s moon landing from September 2026 to mid-2027. The primary culprit: unexpected heat shield charring on the Orion capsule during the uncrewed Artemis I test flight in December 2022.

What Caused the Latest Artemis Delay?

During Artemis I’s return to Earth, Orion’s heat shield experienced more significant erosion than predicted. NASA Administrator Bill Nelson confirmed engineers discovered «char loss» patterns that differed from simulations. Rather than replacing the entire shield—which would cost years—NASA opted to modify the Artemis II re-entry trajectory to reduce heat exposure. This analysis consumed 15 months.

When Will Artemis II Launch Now?

Artemis II now targets April 2026 for a 10-day crewed mission around the moon with four astronauts. The revised flight path will use a shallower re-entry angle to manage thermal stress. NASA Deputy Administrator Jim Free stated the agency is «confident in this new approach» following extensive testing at Marshall Space Flight Center.

How Does This Affect the Moon Landing Timeline?

Artemis III’s lunar landing shifts to mid-2027, contingent on SpaceX delivering its Starship Human Landing System and Axiom Space completing new spacesuits. This marks the third delay for the program initially targeting 2024. The revised schedule adds $1.5 billion to development costs according to NASA’s 2025 budget documents.

folder_openMISSIONS schedule2 min read eventPublished Jun 20, 2026 personSarah Voss

Written by Sarah Voss

Sarah Voss is SpaceBox CV's senior space-industry analyst with 8+ years covering commercial spaceflight, satellite networks, and deep-space exploration. She tracks every Falcon 9, Starship, and Ariane launch — alongside the orbital mechanics, propulsion research, and constellation economics that drive the new space economy. Her expertise spans SpaceX operations, NASA programs, Starlink Gen3 deployments, and lunar/Mars roadmaps. Before joining SpaceBox CV, Sarah covered aerospace markets for industry publications and followed launch programs from Boca Chica to Kourou. She watches every major launch in real time, reads every FCC filing on satellite deployments, and tracks rocket manifests across all major providers. When not writing about Starship's latest test flight or a constellation-grade laser link, Sarah is observing launches and studying mission profiles — first-hand following the cadence she writes about for readers.