Posted by Courtney E. HowardWASHINGTON, 8 Sept. 2011. Computer Science Corp. (CSC) of Falls Church, Va., won a NASA contract modification, extending the company’s support of the NASA Shared Services Center (NSSC) through Sept. 30, 2012 and adding more than $41 million for the one-year option period. CSC personnel are contracted to deliver information technology (IT), procurement, and related services to NASA under the agreement. The NSSC--a partnership among NASA, CSC, and Mississippi and Louisiana--performs selected business activities for all 10 NASA centers.