Catch the young crescent Moon with Mars low in the west after sunset on Aug. 24, 2025, just a day after a rare seasonal “black moon.”

The black moon is occurring this weekend, but it won’t be visible from Earth. Here’s everything you need to know about the celestial event.

The August new moon 2025 will be a rare lunar phenomenon to watch. Here's what to know about this weekend's moon phase and meaning of the black moon.

Unlike a supermoon or lunar eclipse, a Black Moon isn't something you can watch unfold in real time. During the new moon phase, the moon is positioned between Earth and the sun, so its unlit side faces us, rendering it invisible against the bright sky.

"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."

You've no doubt heard of supermoons, blue moons, mini moons and blood moons, but have you ever heard of a black moon?

A rare black moon darkens the sky on Aug. 23, 2025, followed by a close encounter between the young crescent and Mars just days later.

Tonight's August new moon will be a rare lunar phenomenon to watch. Here's what to know about the black moon, when, where and time to watch today

You won’t actually see it, but a rare black moon – this one, the second new moon in an astronomical season – will appear on Aug. 23 over Evansville. Weather permitting, it'll give you darker skies and extra time to stargaze and to observe the end of the Perseid meteor shower.

The Black Moon will occur on August 23, 2025, a rare new moon that appears due to unusual calendar and seasonal timing.