The claim that Apollo astronauts never left a Hollywood soundstage has circulated for decades, and the MythBusters take it apart at NASA's Marshall Space Flight Center with the help of agency scientists. First up is the flag that appears to wave in a vacuum: they show the motion comes from the astronauts twisting the pole into lunar soil, not from a hidden breeze. Then they tackle the mismatched shadows conspiracy theorists point to in the Apollo photos, building a small-scale replica of the landing site lit by a single distant spotlight and adding a slight hill so the shadows fall on a slope, matching an Apollo 14 photograph exactly. To settle it further, they construct a much larger replica with dust matched to lunar soil's color and reflectivity, and the resulting photograph lines up with the original Apollo 11 image. Each test targets a specific piece of evidence, treating the hoax claim as a testable hypothesis rather than a debate.