Explore our solar system in 3D. Click on planets and moons to view articles about them. Use the date selector to see planetary positions at different times, and adjust the time speed to watch orbits in action.

Featured Articles

• Moon forming Impact - The giant impact hypothesis for lunar formation, one of the most significant events in early solar system history
• Mars - The red planet and our next frontier for human exploration
• Titan - Saturn's largest moon with a thick atmosphere and hydrocarbon lakes
• Europa - Jupiter's icy moon with a subsurface ocean that may harbor life
• Ganymede - The largest moon in the solar system, with its own magnetic field

Getting out there

• Airship to Orbit - Novel approaches to reaching space