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To:
xJones; blam
Now determined to lie only 1,440 light-years away, the Cygnus Loop is thought to have been expanding for 5 - 10 thousand years.
This would be in the time range to be part of the historical record.
6
posted on
01/18/2003 12:13:37 PM PST
by
RightWhale
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To:
RightWhale
This would be in the time range to be part of the historical record.
This isn't the one described in some Chinese annals, is it?
8
posted on
01/20/2003 8:02:47 AM PST
by
aruanan
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