By
Sukran Cakiroglu
Your Science Teacher
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit...
The Moon rotates on its axis and revolves around the Earth as the Earth revolves around the Sun. It takes about 27 Earth days for the Moon to rotate on its axis and about 29 ½ Earth...
An explanation of the moon phases using a colorful diagram with realistic images.
The lunar phase or phase of the moon is the shape of the illuminated (sunlit) portion of the Moon as seen by an observer on Earth. The lunar phases change cyclically as the Moon orbits the Earth, acco
