Moon Phases: Understanding the Moon's Cycle

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Most people observe the Earth's moon on a regular basis, so when it shows up in the night sky looking a bit different — like during a Harvest Moon or Blood Moon — it's something worth talking about. Have you ever wondered why the Moon looks full at times and, at others, appears to be a crescent shape? 

Although those are two of the most common ways the Moon is depicted, there are more Moon phases than you might realize. So, what, exactly, causes these phases? Let’s take a closer look at the Moon, so that, next time, you'll have a deeper understanding of its unique appearance.