It’s common to the point of mootness, but: when describing the planet, Earth is a proper noun and should be capitalized. Otherwise you are referring to soil.
It’s common to the point of mootness, but: when describing the planet, Earth is a proper noun and should be capitalized. Otherwise you are referring to soil.
The original post is technically correct on the topic of capitalization for “Earth”. When referring to the planet, it is a proper noun, thus capitalized. source
However, that is a pretty egregious use of a colon XD