C-Ship - A short overview of special relativity, filled with relativistic ray traced images. Explains relativistic effects using a theoretical spaceship.
Relativistic Physics of Space Flight Simulator - Software which demonstrates the effects of special and general relativity as the user steers a simulated spaceship through the solar system, through interstellar and intergalactic space. Requires Windows 98 or Windows XP.
Relativistic Starflight - The program xrel depicts, as realistically as possible, the appearance of stars as seen from a starship moving at speeds close to the speed of light.
Interactive Visualization of Gravitation as Spacetime Curvature - Interactive Flash animation of a smaller test mass in the gravitational field of a larger mass, following the laws of general relativity. The animation uses an unusual form of representation in which time is bent into a circle.