The new version of Universe Sandbox with galaxy collision is now available:
Download it now...
http://universesandbox.com/download/If you've already installed it, just run it again to update.
The latest version of Universe Sandbox has a number of new features and improvements including:
- Visualize galaxies and nearby stars in 3D and to scale
- View the nearest 1000 stars to our sun and see their motion over time
- View the nearest 70 galaxies to the Milky Way
- View the 200 brightest galaxies
- Collide galaxies together; watch gravity rip them apart
- Loads faster than previous versions
- Auto time step and auto orbit features improved
- Enhanced introduction to the program
- Basic HUD now always visible