Help Software has released a collection of free sound files from various historical space missions and they have been conveniently converted to ringtones for your Windows Phone. NASA Ringtones is a collection of 24 ringtones from various Shuttle missions, Apollo and Mercury Space missions, Beeps and Bytes, and sound bits from current missions that including the Cassini Saturn mission and the Atlas V launch.
Each set of ringtones has an mission appropriate wallpaper backdrop (i.e. the moon for Apollo and Mercury) that gives the app an impressive appearance (shame the pics can't be used as device wallpapers). Each ringtone can be previewed and saved to your Windows Phone.
Ringtones range from the Apollo 11 "The Eagle has landed" quote to the Sputnik beep. Growing up watching Neil Armstong land on the moon, these ringtones definitely bring back memories. If your a fan of NASA and space exploration, this is a must have collection for your Windows Phone. According to the developer this is just the start and look for more space sounds to be added with future updates.
There is a free trial available for NASA Ringtones and the full version runs $.99. You can download NASA Ringtones here at the Windows Phone Marketplace. It is a mango app so you'll need to make sure your Windows Phone is updated before hand.