Google Open Source - All of Googles open source projects under a single umbrella
SpaceVR - Explore space with Oculus Rift (pre-launch)
Code NASA - 253 NASA open source software projects
Astronaut - You're an astronaut. Click to watch random videos in space.
Log Owl - Open-source, privacy-focused error tracking and analytics
NASA Exoplanet Posters - Imagine visiting worlds outside our solar system