The purchase of Hughes Space and Communications Company in 2000 gave Boeing an impressive range of products for design, manufacture, launch and support of satellites. This was in addition to Boeing Integrated Defense Systems' other space assets, e.g. Delta launch vehicles, older-generation GPS satellites, and Rocketdyne and Rockwell's space operations (which include much of the hardware used in NASA's crewed space program, such as the Space Shuttle, International Space Station, rocket engines, etc.) Currently projects at the Boeing Satellite Development Center (spacecraft being designed, built, tested, or prepared for launch) are satellites made for XM (satellite radio), DirecTV (satellite television), MSV (satellite mobile telephony), Spaceway (data networks), GPS (satellite navigation), and for the Wideband Global SATCOM system (military communications). Designs for ISAT (military orbital radar demonstrator), for additional GOES satellites (meteorology), and for other spacecraft, are currently being developed and proposed. Subsidiaries Spectrolab – world's leading manufacturer of space solar cells and panels Electron Dynamic Devices – sold to L3 communications in 2005 Millennium Space Systems See also List of satellites in geosynchronous orbit References External links Boeing Satellite Development Center Complete list of past satellites and space probes from Boeing Satellite Systems Complete list of current navigation and communications satellites projects at Boeing Satellite Systems Complete list of satellites built on the 376, 601, and 702 platforms (almost every BSS satellite is an adaptation of one of these three designs) Boeing contributions to space exploration projects, past (e.g., X-15, Apollo) and current (e.g., Shuttle, ISS) - includes the work of companies since acquired by Boeing, such as Rockwell International and North American Aviation. Boeing Defense companies of the United States Spacecraft manufacturers El Segundo, California