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[2012-07-30]. (原始内容存档于2013-05-01). A commercial capability would allow the station's crew togrow from six to seven by providing a four-seat vehicle for emergency
Selding. WorldVu, a Satellite Startup Aiming To Provide Global Internet Connectivity, Continues ToGrow Absent Clear Google Relationship. SpaceNews. [2020-07-29]
Davenport, Christian. Virginia has a rocket launch site, and it's about togrow with the most successful startup since SpaceX. The Washington Post. 2020-10-02