Star Chart - Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free. Read more about Star Chart.
YouTube Kids - YouTube for the youngins on iOS and Android
Google Sky Map - Google Sky Map is a free hand-held planetarium that allows you to identify stars, planets and more.
Nick Jr. - Nick Jr. provides educational and entertaining programming to encourage preschoolers to learn, play and have fun.
Code NASA - 253 NASA open source software projects
Tankee - The first gaming network for kids 🎮🧒