Moon is almost in full phase (see the featured image). It is currently seen on the constellation of pisces. Moon is the only natural satellite of earth. Moon has the dark area on its surface called mare (maria).
Moon is so popular and it's been used as a calendar system since the ancient period on earth. New moon, crescent and full moon are moon phases that people usually observe especially nowadays for Islamic calendar (Hijri). Right now is 13 rabiul akhir 1445 in hijri.
Others combine both lunar and solar system for their calendar, such as Chinese, Buddhist, Burmese, Assyrian, Hebrew, Jain and Kurdish, traditional Nepali, Hindu, Japanese, Korean, Mongolian, Tibetan, Vietnamese, the ancient Hellenic, Coligny, Babylonian, and some pre-Islamic calendars. The combination of lunar calendars and solar calendars are called lunisolar calendars.
Now we're moving to lunar eclipse. It is an event where the position of earth, moon and sun are aligned. The moon will be darkened as the shadow of earth on its surface. It only happens if the earth is in the same alignment between the moon and the sun.
The moon is affecting tides on earth. Currently it's almost full moon, higher tides might happen on the oceans of the earth.
The moon lights up the sky on earth at night as it reflects the light from the sun. It doesn't generate it's own light. The light reflects off old volcanoes, craters, and lava flows on the moon's surface.
I'm done about some general facts of lunar.
By the way, Clair de Lune is a poem by Paul Verlaine (1869) and a classical music piece by Debussy (1905). It is French for moonlight.