freda, thanks for the song. Beautiful and very poignant. I find myself craving a natural silence so much these days.

nutty, HERE'S some info on what would happen if one hit the Earth.

I have NO idea if this person knows what they are talking about, but they ahev this to say: Comets are electrically active disruptors. They need not impact the earth directly to alter earth weather patterns through the disruption/augmentation of the sun's energy output. As with any electric circuit, arc'ing can occur due to proximatey which does not require actual impact (action at a distance -per Mccanney). These comets willl cause weather impacts.