3D simulation of our Earth, moon, and sun! Input any date to see how our solar system looked, or might look in the future. Watch the solar system comes to life on your device as the simulation is played in real time or sped up. Watch the Moon from the Earth to witness its phase cycle, watch the Earth from the Sun to view its rotation, and zoom out while watching any celestial body from itself to view their orbits. You can also choose from 10 extra skins for the Earth.