"The days immediately following the black moon will reveal one of the most beautiful lunar sights: the thinnest crescent," Space.com stated. "On the evenings of Aug. 24 and Aug. 25, look toward the western horizon about 30 to 40 minutes after sunset to spot a delicate silver arc, the moon's first reappearance after going dark."

A so-called black moon occurs once every two to three years, according to an expert from the Adler Planetarium.

The new moon on Saturday, Aug. 23, will be a seasonal “black moon” — a rare occurrence when four new moons fall within a single season. It has an intruiging future echo.