A black moon is a rare occurrence. The next Black Moon will occur on Aug. 23, 2025. This is considered a Black Moon under the definition of the third new moon in a season of four new moons. A ...

The next event will occur on August 23, 2025, marking the third new moon of a four-new-moon season. The next black moon will occur on August 31, 2027. Sun and moon in conjunction on Dec. 30 ...

Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

WASHINGTON — There will be a rare "black moon" on Dec. 30, but you're likely not going to notice anything that unusual if you look to the sky on Monday.

WASHINGTON — There will be a rare "black moon" on Dec. 30, but you're likely not going to notice anything that unusual if you look to the sky on Monday.

WASHINGTON — There will be a rare "black moon" on Dec. 30, but you're likely not going to notice anything that unusual if you look to the sky on Monday.