Join us on a guided tour of August's moon through all four major lunar phases. The ever-shifting phases of Earth's moon present a wealth of targets for amateur astronomers to explore, ranging from ...

March’s “worm moon” sets behind Rocca Calascio castle and village in L’Aquila, Italy. Photograph by Lorenzo Di Cola, NurPhoto/Getty Images Earth’s moon phases cycle from month to month, waning and ...

We're a day away from the full moon, so let's see what's happening in the current lunar cycle. This is a series of eight unique phases of the moon's visibility. The whole cycle takes about 29.5 days, ...

With each day we move through the lunar cycle, the moon becomes less and less visible. The lunar cycle is a series of eight unique phases of the moon's visibility. The whole cycle takes about 29.5 ...