The Star Destroyers are designed to enter an atmosphere - e.g. Clone Wars
The design of the USS Enterprise is supposedly to enable smooth warping (and it sometimes enters an atmosphere).
The B-Movie spaceships and flying saucers often moved from atmosphere to space.
Also, you never know when you'll hit a dust cloud or Mutara Nebula.
(, Fri 15 Feb 2013, 14:50, Share, Reply)