No, the Moon's orbit is not in the same 3D plane as Earth's orbit around the Sun.

Here's why:

* Earth's orbital plane: Earth orbits the Sun in a plane called the ecliptic plane.

* Lunar orbital plane: The Moon orbits Earth in a plane that's tilted at about 5.1 degrees to the ecliptic plane.

This means the Moon's orbit is slightly inclined relative to Earth's orbit around the Sun. This tilt is the reason we experience eclipses only occasionally. When the Moon's orbit crosses the ecliptic plane during a new moon (solar eclipse) or full moon (lunar eclipse), the Sun, Earth, and Moon are aligned, leading to an eclipse.