Aquila, a drone with a 130-ft (40-m) wingspan built by social media company Facebook, is shown in this publicity photo released to Reuters on July 30, 2015. Facebook has completed building the drone to deliver Internet to remote parts of the world, and it is now ready for testing.  REUTERS/Facebook/Handout via ReutersATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS.      TPX IMAGES OF THE DAY
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