After 33 months, a rare Black Moon graced the skies, an invisible 'new moon' occurring when it's positioned between Earth and ...

This weekend features a rare black moon, an invisible celestial event occurring when the moon is between the Earth and sun.

While the spectacular annual Perseid meteor shower peaked around Aug. 12, it generally continues through Aug. 24. With the ...

A new moon rose early this morning, and like always it was invisible to us here on Earth. This particular hidden moon is ...