User talk:91.104.62.217

earth
It's not inconsistent. The lower-case variant is at earth, and the capitalized one is at Earth. The proper noun is not always capitalized in practice, even through grammars say that is the preferred form for the name of the planet. We also have sun and Sun, moon and Moon. Each documentable spelling and capitalization variant gets an entry to show how it is used. --EncycloPetey 21:47, 2 August 2009 (UTC)