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Last updated on April 20, 2014 at 17:20 EDT
Comet Borrelly Slows Solar Wind
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Comet Borrelly Slows Solar Wind

March 18, 2003
Over 1300 energy spectra taken on September 22, 2001 from the ion and electron instruments on NASA's Deep Space 1 span a region of 1,400,000 kilometers (870,000 miles) centered on the closest approach to the nucleus of comet Borrelly.