Pixel Gravity

     Pixel Gravity is an N-body gravity simulator: a computer program for creating imaginary astronomical universes--with planets, solar systems, or entire galaxies--and showing you what they would do in reality. It can make galaxies collide, build a solar system with planets orbiting in any possible (or impossible) direction, bombard Jupiter with Earths, or do anything else you want it to with various celestial objects.

Two merging galaxies. Click here if the video's broken. (Non-moving screenshots here).

     It has lots of editing tools for doing complex things in simple ways. Moving, editing, and orbiting planets, as well as looking around your simulation, are all easily doable with only your mouse. You can build huge simulations or mess with a simulation while it's running without needing to type anything.

     For more science-oriented users, there are plenty of ways to view and edit the physical details of a system directly, so you can do very exact and realistic simulations as well as quick and simple ones. This program is precise enough to correctly predict planetary transits, yet versatile enough to make almost any kind of space-object simulation you can think of.

     All of this makes Pixel Gravity a useful tool for astronomy-related education at any level, or just something fun to play with for anyone who likes astronomy.

     There's a free demo version, which does nearly everything the full version does, so go try it out. If you like it or find it useful, you can buy the full version (including future updates) from the download page.

© 2011-2014 Corwin Wray