July's full moon, the Buck Moon, will be visible on July 10th and will be one of the lowest-hanging full moons of the year. The best viewing time is at dusk when the moon rises on the eastern horizon.

This week in Skywatch, I want to go back to basics when it comes to the moon. So why does the moon change shape? Why is it a crescent on one night, a half-moon another night, and a full moon on yet ...