NASA’s Office of Inspector General terminates audit of Artemis program with words of obviousness by Douglas Messier Managing Editor NASA’s Office of Inspector General (IG) has determined that the biggest problem the space agency faces in its Artemis lunar program is….wait for it….money. “Based upon our audit work completed to date, we found that the most significant challenge NASA currently faces in returning humans to the Moon by 2024 is budget uncertainty, a challenge that could ultimately affect the Agency’s ability to safely accomplish the mission,” the IG said in a memorandum published on its website.