Yes - all planets names begin with a capital letter.
Planets should be caplized
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.
There are no planets names Mercuryvenus or marsa 11, no.
no
YES! For all the nouns and adjectives derived from the names of countries.
a CAPITAL letter
yERR
capital letter
Uruguay and Utah begin with a capital letter. Names such as Upton, Urban and Ulrich also begin with a capital letter.