Why dont you have a solar and lunar eclipse every month?
To have either a solar eclipse or a lunar eclipse, the sun, earth and moon must be oriented in a straight line. However, the moon revolves around the earth in an orbit which is tilted, so it is not always lined up correctly when it passes between the sun and earth, or when it is on the far side of the earth in the case of a lunar eclipse; e.g., most of the time when the moon is closest to the sun in its orbit around the earth, it is ‘above’ or ‘below’ the earth.
