What was caused by the straight alignment of the sun earth and moon?

The straight alignment of the Sun, Earth, and Moon causes a solar or lunar eclipse. During a solar eclipse, the Moon passes between the Sun and Earth, blocking the Sun's light, while a lunar eclipse occurs when the Earth is positioned between the Sun and the Moon, casting a shadow on the Moon. These phenomena happen only during specific phases of the lunar cycle and are a result of the celestial bodies being in a straight line.