Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The term alt.space refers to a community of relatively new aerospace companies working to develop low-cost access to space or spaceflight technologies and advocates of low-cost spaceflight technology and policy. The term New Space is also being used. The name comes from the alternative hierarchy ("alt.") of Usenet newsgroups.The Ansari X-Prize won by Burt Rutan's Spaceship One vehicle is considered by many[who?] to be an alt.space category event.

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