Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes it is just a sliver of silvery light. These changes in appearance are ...

Most of us notice the moon changing shape in the sky, but most people don’t ever stop to think about why it happens (except maybe the science geeks among us). Of course, those changing shapes in the ...

The Moon has always been one of the most recognizable objects in the sky. It changes shape slightly every night — sometimes round and shining, sometimes just a sliver of light. These are moon phases, ...