A lunar eclipse occurs when the Earth is positioned between the Sun and the Moon, causing the Earth’s shadow to fall on the Moon, making it appear dark or reddish. A solar eclipse happens when the Moon comes between the Sun and the Earth, blocking the Sun’s light from reaching parts of the Earth, making the Sun appear hidden. There are two types of solar eclipses: total (where the Sun is completely covered by the Moon) and partial (where only part of the Sun is covered). These eclipses happen due to the alignment of the Sun, Earth, and Moon during their orbits.