//mercury.applyImpulse(new Vector(3e16f, 0, 0), null);
}
public void render() {
universe.clearDynamics();
universe.applyEvent(new GravityEvent(mercury));
universe.applyEvent(new GravityEvent(earth));
universe.applyEvent(new GravityEvent(mercury2));
universe.applyEvent(new GravityEvent(sun));
solvedCollisions.clear();
universe.applyEvent(new CollisionCheckEvent(mercury, solvedCollisions));
universe.applyEvent(new CollisionCheckEvent(earth, solvedCollisions));
universe.applyEvent(new CollisionCheckEvent(mercury2, solvedCollisions));