The planets are part of the makup of the solar system. I guess you could say the sun provides light for the planets and gravety that holds them to the solar system.
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
The Solar System is made up of the planets. It could not be smaller than the parts that make it up.
9 P in the S S = 9 Planets in the Solar System
Our solar system is the planets
There are nine planets in the solar system
Extra solar planets are planets that is outside of our solar system.
Well, there are planets outside of the solar system, and there is one that is livable, but I don't know what it is called.
There are eight planets and five dwarf planets in our solar system.
The Solar System. Multiple solar systems make up Galaxies.
There are 5 rocky planets in our solar system if you count Pluto. If not, there are 4 rocky planets in the solar system.
Planets that are not part of our solar system and in other solace systems are called exo-solar planets or exoplanets.