It's another moon phase tonight, which means the moon will look around half full (or, half gone?). But what phase is it, and what does it mean? Let's find out.

What is today’s moon phase?

As of Monday, Oct. 13, the moon phase is Third Quarter. Tonight, only 53% will be lit up, according to NASA's Daily Moon Observation .

Third Quarter is also known as the Last Quarter. This occurs when then there is half a moon, but the left side is lit. First Quarter occurs when the right side is lit.

There's plenty to see on the moon's surface tonight, even with half of the moon in darkness. With just your naked eye, enjoy a glimpse of the Mare Imbrium, Aristarchus Plateau, and the Kepler Crater. If you want to take your moon gazing a bit more seriously, take out a pair of binoculars. With these,

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