Occurs when the Moon passes directly between the Sun & Earth and casts a shadow over part of the Earth.
Phases following a new moon, more of the Moon's lighted side becomes visible.
When the Sun is directly over the equator, number of daylight and nighttime hours are equal.
Occurs when Earth's shadow falls on the Moon.
Phases that occur after a full moon, visible lighted side of the Moon grows smaller.
When the Sun reaches its greatest distance north or south of the equator.