Assertion: moon's side | /r/HasProperty | dark new moon
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Source sentences:
text: When the moon is on the same side of the Celestial Sphere as the sun, between the observer on earth and the sun, the observer faces the unlit side of the moon, which appears dark (New Moon); when the moon moves away from the sun and off to the side, the observer sees more and more of the portion of the lit side, as the moon waxes from crescent to gibbous.