As the cycle nears its end, the upcoming New Moon on September 21 will mark a fresh beginning, both in astronomical terms and in cultural interpretations of time and energy.

Is it a full moon tonight? Wondering what is the planet and bright star shining next to the moon? Here's what to know and how to see it.

On September 19, the waning crescent moon will rise with Venus and Regulus, while parts of the world see a rare occultation.

The free YouTube livestream will be available from 12 p.m. EDT (1600 GMT) on Sept. 7 and will feature live views of the moon ...

The U.S. and the Western Hemisphere will be treated to the rare sight of a total lunar eclipse, which will cumulate in the spectacle of a glowing red "blood moon." Beginning late Thursday, March 13 ...