Cruise with your space ship through the two-dimensionlal representation of our solar system

This game/simulation features

  • n-body orbital physics (which may lead to derailing moons in high warp speeds after some time)
  • Easily expandable solar system with all planets and some moons. Special thanks to Wikipedia for all the information and NASA for all the nice photos!
  • A badly drawn space ship, which looks the same size – no matter in what distance you look at it – but which is very durable (you can safely land with any speeds) and has infinite fuel!
  • you can select one of the available celestial bodies with the camera select on the upper right, to center it.
  • In the info panel you can select any two bodies to see relative velocities and distances.


  • Arrow keys RIGHT and LEFT to rotate your ship.
  • Arrow keys UP and DOWN for thrust! (yes, there are equally powered rockets on both ends of the ship …)
  • [+] and [-] keys to increase or decrease the time warping.
  • Use the mouse wheel to zoom in and out.

Hearing and binaural beats

The human ear has very strange abilities. An example of this are so-called binaural beats (in German: with two ears perceived strokes).

The unusual thing is that there are actually no beats at all (at least as long as you listen with headphones).

The left and right ear are played slightly different tone frequencies. From the difference of the frequencies (in Hz) results then the frequency of the beats. For example, if the left ear hears a 440 Hz tone and the right ear 439 Hz, the difference results in a binaural beat per second (1 Hz). At 438 Hz on the right ear, the frequency doubles to 2 Hz.

The effect works similarly when the sounds are output through speakers. However, physical overlays and interferences – ie beats – are actually present here. The amazing thing about binaural beats with headphones is that there is not really that superposition of sounds. Each ear hears a continuous sound at a constant frequency.

The beats seem to arise only during processing in the brain.

(translated from german by google)