Based on the content of previous messages in this discussion,

Space Viking mentioned a vessel going emceesquared in battle. Close
enough to a planet, and the consequences might be considered
doubleplusungood.

1. EMP effect on the near hemisphere.

2. Collapsium degenerates into single neutrons. Near hemisphere gets hit
by a neutron bomb.

3. The collapsium hull continues on in its path. Near hemisphere gets
hit by a mass larger than the one which created the Chicxulub crater.