The shadow that falls on the moon is not from the Earth, but from the Sun.

Here's why:

* Lunar eclipses: When the Earth passes directly between the Sun and the Moon, the Earth's shadow falls on the Moon. This is what we call a lunar eclipse.

* Sun's light: The Moon itself doesn't produce light; it reflects sunlight. So, during a lunar eclipse, the Earth blocks the Sun's light from reaching the Moon.

Therefore, the shadow on the Moon happens during a lunar eclipse.