An eclipse cycle is like a really cool dance that the sun, moon, and Earth do together. They all move around in circles, and sometimes the moon gets in between the sun and Earth or the Earth gets in between the sun and moon. When this happens, we see a solar or lunar eclipse!
The dance happens over and over again, but it isn't always the same. Sometimes the eclipses are visible from different parts of the world, and sometimes they happen at different times of the year.
The cycle starts when the moon lines up just right with the sun and Earth, and we see a solar eclipse. Then, about two weeks later, when the moon has moved around in its circle a bit, we see a lunar eclipse.
This keeps happening over and over again, with the eclipses happening in different places and at different times of the year. Scientists study these cycles to learn more about how the Earth, sun, and moon all move around each other, and to help predict when the next eclipse will happen.