Antonyms of earth :
Examples of usage:
What on earth is 'conventional'? "Girls of the Forest", L. T. Meade.
She has died in my arms: her last words have been spoken to me, her last look on earth has been mine. "The Two Destinies", Wilkie Collins.
The earth seems waiting. "The Story of Magellan and The Discovery of the Philippines", Hezekiah Butterworth.