** CORRECTS LOCATION TO CHICAGO ** This image provided by the Adler Planetarium on Thursday, April 7, 2011 shows a proposal for a space shuttle exhibit in Chicago. As the 30th anniversary of the first... more 
** CORRECTS LOCATION TO CHICAGO ** This image provided by the Adler Planetarium on Thursday, April 7, 2011 shows a proposal for a space shuttle exhibit in Chicago. As the 30th anniversary of the first space shuttle launch draws near, the focus is not so much on the past but the future: Where will the shuttles wind up once the program winds down? less 
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Associated Press | Photo By Adler Planetarium
Fri, Apr 8, 2011 8:54 AM EDT