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.
Space Studies is a free educational app meant to inform the public about a variety of space topics such as launch vehicles, astronomy, planetary science, and etcetera. Overview sections for each topic is provided in addition to photo and video galleries. A short tutorial section is also provided for basic mathematical equations related to spaceflight.