1 Mars â Sometimes called the red planet and the brother of Earth. 2  Mars is the closest planet to the Earth. 3  Jupiter â The largest planet in the Solar System. 4  Saturn â Sixth planet from the Sun.
1 When talking about a general direction, the word is often not capitalised, example: the north side of the house. 2  Place names are capitalised: East Sussex, West Virginia, South Africa.  In other cases, adjectives and nouns normally begin with small letters: Go south for three miles, then go east for another three miles.
Declaration of Independence, Bill of Rights, First Amendment, and other legislation and treaties are capitalized. Directions/Regions: north, south, northeast, etc. when they indicate direction; North, South, West, etc. when they indicate geographical regions. Phrases such as the Mid Atlantic, Silicon Valley, Dixie, Sun Belt, and Midwest are capitalized.