CHANDLER, Ariz., Nov 18, 2008 (BUSINESS WIRE) -- Orbital Sciences Corporation (NYSE:ORB) announced today that it will hold the official ground breaking ceremony for its facilities expansion project in Chandler, Arizona on Thursday, November 20. Details of the event are below.


Orbital recently announced a major expansion to its launch vehicle engineering and production facilities in Chandler, Arizona. Orbital currently occupies over 350,000 square feet and employs nearly 1,500 people at its South Price Road facility. To accommodate its anticipated growth, Orbital plans to add up to another 220,000 square feet of office and engineering space capable of housing almost another 1,000 people over the next several years. Orbital will become an anchor corporate tenant of The Waters at Ocotillo corporate, retail and residential development project, which is adjacent to Orbital's main facility.

Where:            Orbital's Chandler, Arizona Facility
                  3380 South Price Road
                  Chandler, Arizona 85248
Date:             November 20, 2008
Time:             Official remarks begin at 9:30 a.m.
Participants:     Mr. Ron Grabe - Orbital's Executive Vice President and General
                  Manager of the company's Launch Systems Group
                  Mayor Boyd Dunn - City of Chandler
                  Mr. Robert Gilbane - President and Chief Executive Officer, Gilbane
                  Development Company
Agenda:           9:30 a.m. Official remarks
                  9:45 a.m. Ground breaking ceremony/photo opportunity
                  10:00 a.m. Media interviews available with ceremony participants
                  10:15 a.m. End of event
Media Parking:    Parking lot in public park on South Price Road between Queen Creek
                  Road and Dobson Road

About Orbital

Orbital develops and manufactures small- and medium-class rockets and space systems for commercial, military and civil government customers. The company's primary products are satellites and launch vehicles, including low-Earth orbit, geosynchronous-Earth orbit and planetary spacecraft for communications, remote sensing, scientific and defense missions; human-rated space systems for Earth-orbit, lunar and other missions; ground- and air-launched rockets that deliver satellites into orbit; and missile defense systems that are used as interceptor and target vehicles. Orbital also provides satellite subsystems and space-related technical services to government agencies and laboratories.

SOURCE: Orbital Sciences Corporation

Orbital Sciences Corporation 
Barron Beneski, 703-406-5528 
Public and Investor Relations