The WorldWide Telescope (WWT) Academic Development Kit, January 2009 release contains two utilities that enable people to convert their astronomical images, panoramas, sky surveys, and planetary textures to a format that can be read by WWT and shared with other WWT users. It produces image pyramids of the photographs, thumbnails, and WTML files. WTML files are XML files in the WWT format that point to the images on the Internet and store details of how they are to be displayed in WWT and metadata such as image title and credits.

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