Moon clouds. The illuminated area of the visible sphere (degree of illumination) is given by formula_3, where formula_4 is the elongation (i.e., the angle between Moon, the observer (on Earth) and the Sun). The gravitational attraction that masses have for one another decreases inversely with the square of the distance of those masses from each other. As a result, the slightly greater attraction that the Moon has for the side of Earth closest to the Moon, as compared to the part of the Earth opposite the Moon, results in tidal forces. Tidal forces affect both the Earth's crust and oceans. The
Dark Is the Sun from the neck and when held up to another belonging to a potential mate will sync in pattern and color to approve marriage. Many times through Earth's existence it faced its end, but each time this event occurred, humanity was at a high point in intelligence and was able to rescue Earth from annihilation. When the sun died, they ignited the moon, and later when the moon died, the Earth was moved to safety. But now Earth's death is approaching during a time when man's technological levels are at a low point. The story opens with Deyv being forced to