Here's why:

* New Moon: A new moon occurs when the moon is between the Earth and the sun, and its illuminated side faces away from Earth. We can't see the moon during this phase.

* Solar Eclipse: A solar eclipse happens when the moon passes directly between the Earth and the sun, blocking out the sun's light. This can only happen during a new moon.

So, while a solar eclipse requires a new moon, a new moon does not necessarily mean an eclipse will happen.

Here's a breakdown:

* New moon: A regular occurrence when the moon is between the Earth and the sun.

* Solar Eclipse: A specific event during a new moon when the moon's shadow falls on Earth.

Think of it this way: All solar eclipses happen during a new moon, but not all new moons result in a solar eclipse.