Sky Map, the popular astronomy app for Android which has been downloaded over 20 million times, is going open source. The application was originally created by Googlers in Pittsburgh to showcase the power of Android smartphones. Google has decided to donate Sky Map to the community, and they’re going to be doing it in two ways.

One, through collaboration with Carnegie Mellon University, Sky Map development will now be driven by students at the university, with Google engineers remaining as advisors. Two, Google has decided to open-source the app so that the public can take the code and use it as they wish.

If you’re a developer and would like to modify the Sky Map code, check out the Sky Map open source project page on Google code. To download Sky Map, head over to the Android Market or scan the QR code below.

Source: Google Research Blog