ET: Is human produced space dust different?

From: Mike Lorrey (
Date: Wed Feb 13 2002 - 09:06:48 MST

This is directed primarily at our resident dust bunny, Amara Graps, but
anyone is free to comment, of course.

Question: Given that Hubble can view the dust disks around other star
systems, and do spectral analyses of same, would it be possible to
detect alien technological civilizations by differences in natural and
artificially produced space dust in such star systems? If someone in
another star system looked at our solar system with their own Hubble
type telescope, could they detect our presence by human produced space

Mike Lorrey

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