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CfA Press Releases Weekly Science Updates 2013 2012 2011 2010 2009 2008 2007 2006 Other News Features All News	Weekly Science Update Using Chemistry to Reveal Cosmic Motions An optical photograph of the starless core, Barnard 68. Astronomers have combined chemical analyses with observations at submillimeter wavelengths to determine that this dark cloud is pulsing. Credit: FORS Team, 8.2-meter VLT Antu, ESO Low Resolution Image (jpg) Back to Science Update
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