Path2d lets you easily define a path for nodes to follow, but by default the line between the points will be straight. This prevents you from creating smoothly revolving / orbiting objects.

To make a Path2d with a Bezier curve:

1. Place your nodes in the scene view
2. Click “Select Control Points” in the editor options window
   (You can also hold Shift instead)
3. Click and drag on your points to adjust the curve

Enjoy making rounded paths!