There are plenty of awesome stargazing apps that can teach you a thing or two about celestial objects and space. Spaceflight Simulator for iPhone is a fun game about space exploration. It involves building your own rocket to explore what’s out there. It has realistic orbital mechanics and an open universe with no limit.
You will be able to explore planets and go anywhere you can see in the distance. A bunch of modules are available for you to experiment with. Spaceflight Simulator is available as a free download with in-app purchases.[where to get it]