Overview

• U.S. Naval Observatory pinpoints the event for about 2:06 a.m. EDT on Aug. 23, when the Moon is new and effectively invisible from Earth.
• “Black Moon” is a popular label rather than an official astronomical term, and this instance is the seasonal type—the third of four new moons this summer.
• The alternate monthly definition, meaning a second new moon in one calendar month, is next expected on Aug. 31, 2027.
• Skywatchers can seek a very thin waxing crescent roughly 30 minutes after sunset on Aug. 24–25.
• Some outlets promote introspective rituals tied to the date, a cultural framing distinct from the scientific description of the new‑moon phase.