Atherys_Ascended_x32_1.5_v1.4.zip is a release file of the Minecraft resource pack Atherys_Ascended_x32_1.5_v1.4, made for Minecraft 1.5.1. It was published on March 31, 2013 and is 10.5 MB in size. For the full description, screenshots and every other version, visit the Atherys_Ascended_x32_1.5_v1.4 resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.