R to reset, shift+R to reset all, Up and down to change zoom, left and right to change speed. Click on an object to select it, it centers and tracks the object (if it's moving, like a planet).
Credit to @yoshi-fan for the original planets/sun. I edited them and added moon costumes. Idea from @yoshi-fan. All else credit to me! Why '3'? I made 1 and 2 a LONG time ago (when I wasn't too good). This is better twist on the idea. Other solar system projects: https://scratch.mit.edu/studios/1279054/ TAGS: planet planets moon moons astronomy simulations solar system solarsystem simulation education educational
