How is an eclipse a shadow?

An eclipse is created just as any other shadow, by the presence of an object in the path of light. In a lunar eclipse, Earth blocks the sun’s light illuminating the moon. In a solar eclipse the moon keeps the sun’s light from reaching Earth. Thus the shadow of the moon on Earth is what we call a solar eclipse.


This is a web preview of the "The Handy Physics Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App