The Genesis Device, on a build-up to detonation.
 

This image shows the initial energy wavefront
spreading rapidly out through the nebula.
 

Here we see the Enterprise heading out at warp speed as the shells
form. You can see that the nebula material has vanished near to the
centre, but is still visible on the right as the fifth shell begins to form.
 

The Genesis planet, a few minutes after the initial detonation. The shell
structure is still visible, although now compressed as it collapses inward.

Star Trek et al is Copyright Paramount Pictures 1996/97.
No Copyright  infringement is intended and this page is for personal use only.
All  of the above classes of star ships and all of the
named ships are copyright Paramount 1996/97.