During its "new moon" phase, the moon is always "black". It happens at that time of the month when the moon passes through the same part of the sky as the sun and as such, the moon's dark or ...

The next new moon will occur on Sunday, Sept. 21 at 3:54 p.m. EDT (1954 GMT). A new moon occurs when the moon is directly between Earth and the sun, with its shadowed side pointing towards us. You can ...

Blue moons occur every 2.7 years on average. Friday is your last chance to see one until July 31, 2015. This Friday's full moon is known as a "blue moon," the second full moon in the calendar month.

Tomorrow night's the Blue Moon. It won't actually be blue unless you happen to be near a volcano. Volcanic ash and forest fires can turn the moon blue. The secret? It's the ash. If all the ash ...

Tonight is the blue moon -- which isn't blue, of course, unless you happen to be near a volcano. It was actually a mistake by an amateur astronomer in Sky & Telescope magazine in 1946 that led to our ...

Just exactly when is the next Supermoon Blue Moon? As we ready ourselves for the Supermoon Blue Moon on Monday, Aug. 19 where it officially becomes 100% full at 2:26 p.m. EDT (1826 GMT). Some of you ...

From midnight on September 7 to the early hours of September 8, our country welcomed a breathtaking total lunar eclipse ...

Observers from many regions across the country recorded this rare phenomenon: clear images of the red moon were captured in ...

The next blue moon is set to rise Wednesday evening in the Puget Sound region’s eastern sky at 8:13 p.m. The question is, will you be able to see it? A weak upper-level low-pressure system is set to ...