On the Moon, the patterns of light and shadow, called phases, are
New: We see only the dark side.
Waxing Crescent: A growing sliver of light.
Waxing Quarter: Half is lit.
Waxing Gibbous: More than half is lit.
Full Moon: All of the Moon is lit.
Waning Gibbous: More than half is lit.
Waning Quarter: Half is lit.
Waning Crescent: A shrinking sliver of light.
Lunation Movie at NASA site.
Notice that the Moon turns almost the same face toward Earth throughout its orbit. The slight wobble is called "libration".
