Artist rendering of the surroundings of a R Coronae Borealis star, as inferred from the observations obtained with ESO's Very Large Telescope. Such stars show erratic variability that is thought to arise from the presence of large clouds of dust in their envelope.
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http://www.freerepublic.com/focus/f-news/1048872/posts?page=14#14
and
First astrophysical results with AMBER/VLTI [ interferometry ]
EurekAlert | Wednesday, February 21, 2007 | Jennifer Martin of Journal Astronomy & Astrophysics
Posted on 02/23/2007 3:18:36 AM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1789673/posts
“A recent study by Australian researchers has indicated that the particulate matter surrounding various stars is comparable to cigarette smoke and may indeed cause cancer....”