The Full Pink Moon, heralds the appearance of the moss pink, or wild ground phlox—one of the first spring flowers. It is also known as the Sprouting Grass Moon, the Egg Moon, and the Fish Moon. These names were used by early Colonial Americans—who learned the names from the local Native Americans. The name itself usually described some activity that occurred during that time in their location. A full moon is a lunar phase that occurs when the geocentric apparent longitudes of the Sun and Moon differ by 180 degrees; the Moon is then in opposition with the Sun. At this time, as seen by...