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The Ad Astra Rocket Company is an american rocket propulsion company dedicated to the development of advanced plasma rocket propulsion technology. Located in Webster, Texas, three miles away from NASA's Johnson Space Center, the company was incorporated on January 14, 2005. The President and CEO of Ad Astra Rocket Company is retired astronaut, Dr. Franklin Chang Díaz.〔(Ad Astra Rocket Company – About us ), company website, accessed 2010-03-10〕 The company has been working on Chang Díaz's concept of the Variable Specific Impulse Magnetoplasma Rocket, known by its acronym VASIMR. The VASIMR is intended to achieve several advantages over current chemical rocket designs, including lunar cargo transport, in-space refueling, and ultra-high speeds for distant space missions.〔(VASIMR Missions webpage )〕 The Ad Astra Rocket Company Costa Rica (AARC CR) is a wholly owned subsidiary of Ad Astra Rocket Company. AARC CR was formed in 2005. The facility is located approximately 10 km west of the city of Liberia, capital of the province of Guanacaste, on the campus of EARTH University. On December 13, 2006, the Costa Rican team of AARC generated its first plasma. After extensive testing of a ground-test VASIMR unit, the company is aiming for a three-year flight test mission. In March 2015, NASA selected Ad Astra for the NextSTEP program.〔http://www.nasa.gov/press/2015/march/nasa-announces-new-partnerships-with-us-industry-for-key-deep-space-capabilities/〕 == History == The VASIMR is a state-of-the-art rocket design that uses plasma for rocket propulsion. Chang Díaz developed the concept of the VASIMR in 1979, shortly following his graduate research in fusion and plasma-based rocket propulsion at the Massachusetts Institute of Technology. After being selected as an astronaut in 1980, Chang Díaz served on seven different shuttle missions, a space record that he shares with astronaut Jerry L. Ross. After retiring in 2005 from NASA, Chang Díaz formed Ad Astra Rocket Company to develop and commercialize the VASIMR technology.〔(NASA JSC press release (01-23-2006) )〕 Ad Astra completed a formal Preliminary Design Review (PDR) on the VF-200 engine with NASA in June 2013. This is the initial major design milestone on the path to flying a VF-200 on the ISS.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ad Astra Rocket Company」の詳細全文を読む スポンサード リンク
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