> closed and collisionless solutions with any out-of-plane components would be newsworthy and immediately publishable. Trivial example: What about two tiny sp

> closed and collisionless solutions with any out-of-plane components would be newsworthy and immediately publishable. Trivial example: What about two tiny spaceships (they're small enough that their effect on each other is negligble) orbiting a star, one orbiting in the XY plane the other in the XZ plane?