The Artemis II crew of astronauts Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen are returning home from the first manned mission to the moon in over five decades after 10 days in space. Their spacecraft will be returning to Earth at temperatures of 5,000 degrees Fahrenheit, which requires a heat shield designed to protect returning astronauts. However, NASA has admitted that the heat shield on this crew's space capsule has known flaws and could disintegrate if it fails. An investigation by NASA determined that the shield cracked in some spots due to "gas pressure built up" after Artemis I faced "less severe heating" than expected upon re-entry into the atmosphere in 2022. The thermal performance of this heat shield exceeded expectations, and NASA agreed to develop a modified path for the Artemis II mission to keep crew safe. Charlie Camarda, a former NASA astronaut and expert on heat shields, suggested that NASA should not have launched Artemis II with its current design.