Re: Hitting planets with comets

>> Also, NO ONE would ever drop a huge asteroid on a planet.  Planets
are
>> valuable!
>
>Well, certain alien races might. And if you have no shortage of
>inhabitable planets, you might waste one or two.

Or if you were sufficiently xenophobic you wouldn't care that the planet
was destroyed so long as the xenos were as well (eg David Weber's
series).

Michael "Wargh" Rutherfurd