Some crappy simulation I made, if you could call it simulation...
Proportions are totally unrealistic, and the gravitation field is quadratic instead of linear.
Because of the proportions, the Sun kept sucking the Astronaut off earth if I used linear.
Anyways, there's the Earth, Moon, and Sun. You can control the astronaut with
arrow keys to explore the very limited universe.
The earth and moon are driven by motors on huge discs around the sun, so don't use mouse or you might mess something up.
Explore the very limited universe with the astronaut.
If you want you can make it a kind of game.
Mission 1: Come loose from the gravitationfield of Earth.
Mission 2: Land on the Moon.
Mission 3: Do 3 laps around the Moon, then back to Earth.
Mission 4: Do 3 laps around the Sun, then back to Earth.
Let me know on what mission you fail, or if you make it through all of them!