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 ...
December's full moon, known as the Cold Moon, illuminates the longest nights of the year. Despite its name, the moon doesn't cause the chill; Earth's tilt away from the sun brings winter's cold. This ...
What is the moon phase today?Today, Dec. 31, 2025, the moon is 11 days old and is in the Waxing Gibbous phase of its lunar cycle. It is 91% illuminated.December 2025 moon phases and datesMoon ...