Check today’s Moon phase and explore the full lunar calendar for 2025, showing each stage from new moon to full moon throughout the year.

Learn how the Moon’s phases form, why it changes shape in the sky each night, and what each stage — from new moon to full moon — actually means.

The moon is constantly changing. Well, from our perspective, it is. Thanks to the different angles of light the sun shines, on Earth we get to see what looks like different moon "shapes". This is ...

Join us on a guided tour of August's moon through all four major lunar phases. The ever-shifting phases of Earth's moon present a wealth of targets for amateur astronomers to explore, ranging from ...

When the moon is nearly between Earth and the sun, one side of the moon faces the sun, and that side is illuminated, but the side the Earth sees is dark. This is called the new moon phase of the lunar ...