When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Make a New Year's resolution to get out and look at the moon more often, with help from a free, ...

The Moon's phases are caused by changing amounts of sunlight reflecting off its surface as it orbits Earth. Lunar eclipses happen during a Full Moon when Earth is between the Sun and Moon. Solar ...

A look at the phases of the moon, from new moon to full moon, including's tonight's lunar phase. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Today, Sept. 8, 2025, the moon is 16 days old and is in the Full Moon phase of its lunar cycle. It is 99% illuminated.

Make a New Year's resolution to get out and look at the moon more often, with help from a free, do-it-yourself Moon Phases Calendar and Calculator from NASA. We love this NASA Moon Phases Calendar ...

The moon’s appearance changes drastically over the course of each month, from a crescent to a half-disk and then a full disk — and then back again. What causes these so-called phases of the moon? “The ...