rocket business and manufacturing capabilities. This was followed by the opening of a new facility in Chandler, Arizona in 1989 to house the company's expanding rocket business. In 1990, the company successfully carried out eight space missions, highlighted by the initial launch of the Pegasus launch vehicle, the world's first privately developed space launch vehicle (the claim of being the first privately developed space launch vehicle can be contested as Pegasus received significant funding from NASA and DARPA, and a predecessor private rocket exists, the Conestoga rocket). Shortly following the successful Pegasus launch, Orbital conducted an initial public offering (IPO) in 1990 and began trading on the NASDAQ stock exchange. In 1993, Orbital established its headquarters in Dulles, Virginia. In 1994, Orbital successfully conducted the inaugural launch of the Taurus (now renamed as Minotaur-C) launch vehicle. In the early 2000s, Orbital continued expanding its missile defense systems business with a US$900 million award to develop, build, test and support interceptor booster vehicles. In 2006, Orbital conducted its 500th mission since the company's founding with products that included satellites, launch vehicles, and missile defense systems. In 2007, the first interplanetary spacecraft built by Orbital, Dawn was launched on an eight-year, three-billion-mile journey to the main asteroid belt between Mars and Jupiter. A major milestone in the company's history was in 2008 when it received a long-term NASA contract to provide cargo transportation services to and from the International Space Station (ISS) with a value of approximately US$1.9 billion for missions from 2011 to 2015. Orbital used its Cygnus spacecraft and Antares launch vehicle to transport cargo to ISS following the success of Cygnus Orb-D1 and Cygnus CRS Orb-1. Acquisitions Orbital Science made a number of strategic acquisitions in the 1990s and 2000s to strengthen its position in the satellite market. In 1994, Orbital completed acquisition of Fairchild Industries' subsidiary Space and Defense Corporation, and merged the Fairchild Space business with its own satellite design and manufacturing division. The electronics business of this subsidiary was later sold off in 2000. In 1997, Orbital acquired CTA, Inc, a company that, under the spacecraft design engineering and business leadership of Tom van der Heyden - designer of the GEOStar spacecraft - had designed and built the first geostationary "lightsat" under contract to Indonesia for Asia's first Direct Broadcast Satellite (DBS) television broadcast program, and the world's first S-Band television broadcast satellite - providing an