Which is larger outer space or inner space? Or are they both the same size, and both the same thing?

I think outer space is bigger than inner space because inner space is something inside of it like it can hold things it haves gravity and it can't be bigger than outer space. Outer space is bigger then inner space because outer space haves allot of things out there it have the galaxy it have allot of plants and plants are very very big and there is no way inner space can be bigger than more than 2 plants put together. Inner space is like only big as 1 planet so that why i think outer space is bigger than inner space. Outer space have the moon, sun, and the stars and the moon is big so is the sun but my question is, is the moon bigger then the sun?
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HOMOPHONES are words that:
Sound alike
Have different meanings
Have different spellings
                                  Example: son (male child)
                                                   sun (star in our solar system)

HOMONYMS are words that:
Sound alike
Have same/different spellings
                                 Example: Write (to put on paper)
                                                  Right (the correct answer)

HOMOGRAPHS are words that:
sound same/different spellings
                                 Example: Tear (water in eye)
                                                   Tear (rip or torn)

Capitalization: Means all proper nouns are capital
Punctuation: Means to use periods, question marks, and exclamation marks 
Coherency: Means that the sentence must make sense