DULLES, Va., Nov 9, 2001 /PRNewswire via COMTEX/ -- Orbital Sciences Corporation (NYSE: ORB) announced today that Mr. Roderick M. Hills has joined the company's Board of Directors. With 30 years of experience as a Director of numerous large, public companies, Mr. Hills brings a wealth of knowledge and expertise in corporate strategy, governance, finance, accounting, legal and international matters to Orbital's Board. He has been appointed to the Board's four-member Audit and Finance Committee.

Mr. Hills is currently founder and partner with Hills & Stern, Attorneys- at-Law, and is active as a Director and advisor to several corporations and associations. Previously, he served as Counsel to the President of the United States, Chairman of the Securities and Exchange Commission, founder and partner of Munger, Tolles & Hills, and partner at Latham, Watkins & Hills. He received B.A. and LL.B degrees from Stanford University and taught at Harvard University's Law School and Business School, Yale University's School of Organization and Management, and Stanford's Law School.

"We are most honored to have Rod Hills join the company's Board. He has a tremendous background in a wide range of industries and managerial functions, as well as in government service, that will be of great value to Orbital. We look forward to benefiting from his strong guidance and experience in the years ahead," said Mr. David W. Thompson, Orbital's Chairman and Chief Executive Officer.

Orbital develops and manufactures affordable space systems, including satellites, launch vehicles, electronics and advanced space systems. Orbital is also involved with satellite-based networks that provide wireless data communications and high-resolution Earth imagery to customers all around the world.

    More information about Orbital can be found at: http://www.orbital.com .
CONTACT: Barron Beneski, Public and Investor Relations, of Orbital Sciences Corporation, +1-703-406-5528, or beneski.barron@orbital.com.

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SOURCE Orbital Sciences Corporation

CONTACT:          Barron Beneski, Public and Investor Relations, of Orbital
                  Sciences Corporation, +1-703-406-5528, or beneski.barron@orbital.com

URL:              http://www.orbital.com
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