From:	Gian-Paolo Musumeci <musumeci@***.LIS.UIUC.EDU>
Subject:	Re: Non-FASA materials
Date:	Mon, 25 Apr 1994 20:46:15 -0500

For that matter, JPL (Jet Propulsion Laboratory) has developed ion drives,
but they are intensely radioactive. Therefore, they designed something that
looks kind of like this:

*============================================O

Where O is the rest of the satellite, the line of "="'s is a long structure of
lead-coated steel (I think) to isolate the radiation source, and the * is the
ion drive.

The things, when they're turned on, have this *really* cool bluish glow to them.