Orbital to Conduct Conference Call With Financial Analysts And Investors To Discuss Go-Forward Plans For Antares Rocket And Cargo Deliveries For NASA

Orbital Sciences Corporation

today announced that it will host a conference call with investors and analysts on Wednesday, November 5 at 8:30 a.m. (EST) to discuss the company's plans to fulfill its commitments to NASA for cargo delivery services to the International Space Station and to upgrade the Antares launch vehicle. The call will be hosted by: * Mr. David W. Thompson, Chairman and Chief Executive Officer * Mr. Garrett E. Pierce, Vice Chairman and Chief Financial Officer To access the conference call, dial (888) 541-8767 and use the conference ID number 31422418. The conference call will also be webcast through a link on Orbital's web site at www.orbital.com/investor. A replay of the conference call will be available online or by dialing (855) 859-2056 and using the same conference ID number. The replay will remain active for one week, until November 12, 2014.