Is the word earth always capitalized?

Answer 1

When earth is used in the sense of soil it should not be spelled with a capital letter. When it refers to the planet, as in the earth it may optionally be spelled with a capital letter. Obviously the expression Planet Earth needs capitals.

Answer 2

Yes, it is a specific planet

That's correct if you are speaking of the planet Earth but use a lower case 'e' when speaking of soil or dirt or a' bit of earth ' or when speaking of a fox or badger hole which is known as an earth.

Answer 3

The word "Earth" is typically capitalized when referring to the planet as a proper noun. However, when used in a general sense (e.g., "digging into the earth"), it is not capitalized.