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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 A New Class of Variable Stars Revealed CfA astronomers Sumin Tang and Jonathan Grindlay with the DASCH (Digital Access to a Sky Century at Harvard) scanner that is digitizing 100 years of astronomical photographs. Credit: Sumin Tang and Jonathan Grindlay High Resolution Image (jpg) Low Resolution Image (jpg) Back to Science Update
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