Factual errors: The first night on the ship, when they are having dinner, we see a crescent moon with horns pointing downward. The crescent moon is actually a spherical object that is illuminated by the light of the sun. Therefore, the "horns" of the crescent always point away from the sun. In the northern hemisphere of the Earth, when the evening sun is below the horizon in the west, the horns of the crescent moon point upward and to the left. And several weeks later, when the morning sun is below the horizon in the east, the horns point upward and to the right. Downward horns would imply that the sun is above the horizon, therefore it would not be night.
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