Code NASA - 253 NASA open source software projects
NASA Exoplanet Posters - Imagine visiting worlds outside our solar system
Google Open Source - All of Googles open source projects under a single umbrella
SpaceVR - Explore space with Oculus Rift (pre-launch)
Disney Open Source - Explore Disney's Open Source projects
Open Source @IFTTT - A collection of IFTTT OSS projects.