Science editor Alan Boyle's Weblog: The spiral galaxy NGC 3521 is a swirling maw of raw power, measuring 50,000 light-years across. So why on earth do astronomers call it "fluffy"?
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Wed, 08/10/2011 - 4:28pm
Science editor Alan Boyle's Weblog: The spiral galaxy NGC 3521 is a swirling maw of raw power, measuring 50,000 light-years across. So why on earth do astronomers call it "fluffy"?