"Neighboring planets" depends on which planet you're asking about. Here's how it works:

From Earth's perspective:

* Inner neighbors: Venus and Mars

* Outer neighbors: Jupiter and Saturn

In general, planets in our solar system are neighbors if they:

* Orbit the same star: All planets in our solar system orbit the Sun.

* Are relatively close to each other: This is a bit subjective, as "close" is relative in space. But planets that are close enough to affect each other gravitationally are considered neighbors.

For example, Mars and Earth are neighbors because they:

* Orbit the Sun.

* Are relatively close to each other.

Important Note: The concept of "neighboring planets" is more about relative position and gravitational influence than strict definitions. It's not like we have planet-specific address labels in space!