The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
HubbleSite, the online home of NASAs Hubble Space Telescope, invites you to help choose the worlds most popular Hubble images. Get wallpaper, Hubble facts, and more.Hubbles vast collection of images awaits your critical and discerning eye. Become part of the Hubble mission by voting for the most spectacular and awe-inspiring sights from Hubbles archive.The app provides a selection of Hubble wallpaper images, chosen and edited for visually stunning results on the iPhone and iPod Touch. Plus, get facts about Hubble history; the telescope; and the scientific discoveries its revealed, from the age of the universe to the mysterious force known as dark energy. The app has been optimized for iPhone and iPod Touchs Retina display.For over 20 years, Hubble has orbited the Earth, beaming home images of celestial splendor. Join in the excitement of the Hubble mission.