Meet an awesome 3D model of our Solar system to explore space, spacecraft, and planets in real time without visiting planetarium. Solar Walk 2 Free：Encyclopedia of the Solar System is a digital guide of our Solar system and a great alternative to the old paper atlases for learning about space exploration and the universe we live in. Explore planets and space with encyclopedia of the Solar system 🌏 🌕 🚀 With this interactive planetarium 3D you can travel to the outer space, explore planets in