Half the Moon is lit up and visible. It's one-quarter of the way through its cycle.

Jupiter teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

the moon is 30 days old and is in the New Moon phase of its lunar cycle. It is 0% illuminated. Moon phase Date First Quarter May 4 Full Moon May 12 Third/Last Quarter May 20 New Moon ...

A cycle starting from one Full Moon to its next counterpart, termed the synodic month or lunar month, lasts about 29.5 days. Though a Full Moon only occurs during the exact moment when Earth ...