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. Weather permitting, it'll give you darker skies and extra time to ...

A New Moon phase occurred at 2:07 A.M. EDT. This New Moon was colloquially termed a "seasonal Black Moon," defined as the third of four New Moons within a single astronomical season. Black Moons, ...

When the moon is nearly between Earth and the sun, one side of the moon faces the sun, and that side is illuminated, but the side the Earth sees is dark. This is called the new moon phase of the lunar ...

New moons are only visible during solar eclipses. This visualization of a tiny sliver, for example, is technically a crescent moon. NASA Goddard Space Flight Center via Flickr under CC BY 2.0 This ...

A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction.

While there is the expression “Once in a blue moon,” once in a while, there is a Black Moon too. Later in August, a rare Black Moon will be seen — or rather, hidden — in the night sky. A Black Moon is ...

There are "blood," "super" and "blue" moons, and then there's the "black" moon. The "black moon," a rare phenomenon that occurs during a new moon phase of the lunar cycle, will occur this weekend. But ...