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.
Do capitalize specific geographical regions but do not capitalize points of the compass or general directions. The hitchhiking penguin was last seen headed towards the south-west of South America. He was clearly ignoring his motherâs advice to head to colder climates in the north.