Astronomy: Software: Space Simulation

A Java applet that shows an interactive 3D representation of the planets and satellites of the solar system.

[freeware - Win 98/ME/2000/XP] Three-dimensional models of the Milky Way neighborhood.

A free 3D space simulator that lets you travel through the solar system and beyond to over 100,000 stars. [Windows, Mac; Open source]

A freeware program that lets you navigate through the solar system neighbourhood at different times in past or future, and to see the sky in a stereographic projection.

Accurate wireframe simulator for the Voyager and Giotto space missions, with animation capability. Developed at JPL for science/navigation, and filmed by the BBC/NOVA. Conveniently runs from any Windows/DOS. Freeware.

Free simulation software which models the interaction between bodies in space according to Newtonian physics.

[freeware - Win 9x/NT/2k/XP] Simulates orbits of planets and other celestial bodies.

[Win 9x/Me/NT/2000 shareware] Mixes sky simulator and astronomical encyclopedia with speaking guide. Simulates most aspects of the space-watching experience. Other free astronomy software included.

[commercial - Windows] Hands-on presentations and simulations about being an astronaut and commanding the space shuttle.

[open source - Win95/98/NT/2000 or Unix/Linux & OpenGL] Newest NASA data creates a fast 3D display of our home solar system, 25000 stars, galaxy, planets, moons, asteroids and even controllable spacecraft.