On Dec 4, 1:12*pm, Pat Flannery wrote:
Sounds like a great beginning for a 1950's Sci-Fi movie plot:http://www.msnbc.msn.com/id/28023860/
Seriously, if it is from another star system, this would be worth
getting a sample return mission to.
So we sent out a probe to do a flyby of it... and as the probe
approached, we first saw written on the surface of the comet those words
of terror that could spell the doom of mankind: "Space Battleship Yamato
is destroyed...all your anime are belong to us." :-D

On a more serious note, devoid of any anime nonsense, it seems to me
that the energy requirements to intercept an extrasolar comet on a
hyperbolic trajectory would be too great.
Too much fuel would be needed to even catch up to it.