Yes - all planets names begin with a capital letter.
Titles, names, sentences, places, planets, countries, continents, languages.Proper nouns.
No Only names of people or places etc have capital letter at start
The words that should start with a capital letter are places, names, important words in a title, and the letter at the start of a sentence.
not if it doesn't start a sentence.
Names of people are proper nouns, therefor they require a capital letter.
no
YES! For all the nouns and adjectives derived from the names of countries.
a CAPITAL letter
capital letter
yERR
Uruguay and Utah begin with a capital letter. Names such as Upton, Urban and Ulrich also begin with a capital letter.
You should use a capital letter mid-sentence when writing proper nouns, such as names of people, places, or things, that require capitalization. This helps to give specific emphasis to those words within the sentence.