STENNIS SPACE CENTER, Miss. -- NASA's Stennis Space Center in south Mississippi will close after normal business hours Monday due to the approach of Tropical Storm Isaac. The center plans to reopen Thursday for normal business operations. Employees should call 228-688-3777 for recorded updates. Naval personnel at SSC should contact the Navy Stennis Emergency Information number at 866-996-0382 or 808-684-5478. (Source: NASA/SSC, 08/27/12)