A second full moon in a single calendar month is sometimes called a "Blue Moon." By this definition, a Black Moon is the flip side of a Blue Moon: the second new moon in a single calendar month.

Similar to how black moon can have more than one meaning, blue moon also refers to the third full moon in a season with four full moons. There are no monthly or seasonal blue moons in 2025 ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Tonight’s new moon—the second new moon in a month—is going to be what scientists ...

If you miss the black moon, you'll sooner be able to see the 'blue moon' (the second full moon in a calendar month) although it won't arrive until 2026. Likewise, this infrequent astronomical ...

While most people are familiar with the term “Blue Moon,” a “Black Moon” is an equally rare phenomenon, and will occur this week. According to Time and Date, a “Black Moon” is actually ...

You've probably heard of a "blue moon," a term used for two full moons in one calendar month. But have you heard of a "black moon?" The label describes a rare second new moon in a month.

While the term “Black Moon” is not officially recognized in the field of astronomy, it is akin to the more familiar “Blue Moon,” which describes the occurrence of two full moons in one month.

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. Most people are familiar with blue moons ...

Not an official astronomical term, a black moon refers to the second new moon in a single calendar month, or the fourth in one astronomical season. It’s essentially the dark side of a blue moon.

The blue moon’s equally rare cousin, the black moon, will rise in Colorado’s skies Monday night, but you won’t be able to see it. While a blue moon is the second full moon in a month ...