How Does The Moon - Eclipses Work?

The Moon and eclipses happen when Earth, the Moon, and the Sun line up just right, like playing a game of hide-and-seek in space.

Imagine you're holding a flashlight (the Sun) and shining it on a ball (the Moon), which is sitting next to you (like Earth). When the ball is in front of you, it blocks the light from reaching your eyes, that's like a lunar eclipse. It happens when Earth comes between the Sun and the Moon, casting a shadow on the Moon.

How the Shadow Works

Think of Earth as a big round shield. When it moves in front of the Sun, it blocks some or all of the sunlight from reaching the Moon. If only part of the Moon is in the shadow, we see a partial eclipse, like when only half your face is in the dark during hide-and-seek.

If the whole Moon slips into Earth’s shadow, that's a total eclipse, and it can look like the Moon turns a pretty red color, kind of like when you shine a flashlight through a glass of water or juice. The light still reaches the Moon, but it takes a different path!

Sometimes the Moon passes between Earth and the Sun, that's a solar eclipse. It’s like when the ball (Moon) blocks your view of the flashlight (Sun), making everything go dark for a little while!

Take the quiz →

Examples

  1. A full moon blocking the Sun during a lunar eclipse, like a shadowy blanket over the sky.
  2. The Moon passing between Earth and the Sun creates a solar eclipse, making the day feel like night.
  3. During an eclipse, you can see the Moon's shadow moving across the Earth.

Ask a question

See also

Discussion

Recent activity