Spectacular new photos of the moon have been shortlisted for the annual Astronomy Photographer of the Year competition. The competition, which is run by the Royal Observatory Greenwich in London ...

A composition photo of images taken during the lunar occultation on Jan. 4 captures the progression of the moon moving in ...

The black moon is set to occur at 5:37 p.m. ET on Monday, according to the U.S. Naval Observatory. New moons occur every four weeks. A monthly black moon, which is not an astronomical term used by ...

The end of the month will see a special kind of new moon, that has been nicknamed a “black moon.” A new moon is one of the moon’s eight phases. It marks its invisible phase, with the ...

What Is a Black Moon? New moons occur every four weeks. A monthly black moon, which is not an astronomical term used by scientists, often refers to the second new moon in a calendar month.