Visible crew/equipment: In the beginning when the camera enters room 3C with the plants, a shadow of the cameraman can be seen on the door frame. (00:02:05)
Continuity mistake: As the experiment recreation progresses, and Helena identifies the spirit, the spirit appears with damage on the left side of its face, and a yellow sleeve on its right arm. When the camera is close up to the spirit, the damage and yellow sleeve change sides.
Answer: Not necessarily - The gravitational fields of Earth and the Sun could have deflected the moon away from the solar system.
Seniram