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NASA DISCOVER A VAST AND UNIQUE SPIRAL
Posted Nov 19, 2010
(Thanks to Julie Weston)
Explanation: What created the strange spiral structure on the left? No one is sure, although it is likely related to
a star in a binary star system entering the planetary nebula phase, when its outer atmosphere is ejected. The
huge spiral spans about a third of a light year across and, winding four or five complete turns, has a regularity
that is without precedent. Full Report
HERE
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