The postal system is confined to operate only on Earth.
A less humorous answer: Write down all the names of the planets and look
for the answer there.
To make it really easy, here are those names:
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune.
They're not.
No. Planets cannot share the same orbit. If they did, they would collide.
all planets.
Saturn, Uranus and Neptune's
Mercury doesn't "have planets".
Planetesimals.
* saturn * uranus
There is one planet and it is Mars.
No two planets share the same moon.
They're not.
No. Planets cannot share the same orbit. If they did, they would collide.
they are the same
all planets.
The planets of our solar system are most definitely NOT all the same size.
Saturn, Uranus and Neptune's
Mercury doesn't "have planets".
Actually, the planets aren't all the same distance away.