NASA will standardize the Space Launch System around the existing Block 1 architecture used for Artemis I and Artemis II.
NASA will standardize the Space Launch System around the existing Block 1 architecture used for Artemis I and II.
A similar helium-flow failure signature was observed on Artemis I.
A failed check valve onboard the vehicle is a potential fault consistent with the Artemis I failure signature, despite corrective actions taken on Artemis II to minimize reoccurrence.
A similar helium-flow failure signature was observed on Artemis I.
NASA relaxed its fueling safety limit for hydrogen leaks by a factor of four between Artemis I and Artemis II.
NASA Stennis integrated the new diffusers, fairings, and purge ring with the existing flame deflector and acoustic suppression equipment originally used for core stage testing ahead of the Artemis I launch.
The SLS rocket was used in 2022 for the Artemis I launch, which flew around the Moon without a crew.
Artemis I required seven fueling attempts over months before the rocket successfully flew.
Ten volunteers successfully tracked the Orion spacecraft during Artemis I in 2022.
The Artemis I volunteer tracking campaign produced data and lessons learned, including implementation, formatting, and data quality variations relevant to the Consultative Committee for Space Data Systems.
Artemis I experienced multiple liquid hydrogen leaks in 2022 and delayed its launch.
Artemis II is the crewed follow-on mission to Artemis I, which orbited the Moon without a crew.
The investigations concluded that Orion’s Avcoat ablative heat shield material was not porous enough to vent and dissipate hot gas buildup during Artemis I’s bounced atmospheric reentry.
NASA, ESA, and DLR scientists evaluated Artemis I radiation data and found that radiation exposure varied based on location within the capsule and Orion’s orientation in space.
Two independent NASA investigations circa 2024 analyzed unexpected damage to Orion’s heat shield after Artemis I reentry.
When Orion’s orientation was altered during an engine burn on Artemis I, measured radiation exposure levels dropped nearly in half.
Damage to Orion’s heat shield on Artemis I included cracks and loss of entire chunks of Avcoat material.
Orion on Artemis II will carry more radiation sensors than were carried on Artemis I.
The upgraded solid rocket booster design provided more than 75 percent of the SLS rocket thrust during the Artemis I test flight.