Editing Ansari X Prize (section)

== Unsuccessful attempts ==
Although only the Tier One team actually launched a spacecraft on a [[sub-orbital spaceflight]], several other teams have conducted low-altitude tests or announced future plans to launch into space:<ref name="belfiore2007" />
* [[ARCA (NGO)|ARCA]] launched Demonstrator 2B rocket on September 9, 2004, at Cape Midia Air Force Base in [[Romania]]. It was the first flight of a reusable monopropellant rocket.
* The [[da Vinci Project]] originally announced that their first flight would be on October 2, 2004, but this was postponed indefinitely on September 23, 2004, as they were unable to obtain a few necessary components in time. No flight ever occurred.
* The [[Canadian Arrow]] team conducted a successful full-power engine test in 2005 and announced on June 2, 2005, that it had received permission from the Canadian government to use [[Cape Rich]] as a future launch site.
* On August 8, 2004, Space Transport Corporation's ''Rubicon 1'' and [[Armadillo Aerospace]]'s unnamed test vehicle, in two separate uncrewed test launches, both crashed and were destroyed.<ref>{{cite news|url=http://news.bbc.co.uk/2/hi/science/nature/3549552.stm |title=(Rubicon 1 un-manned test) X-prize contender rocket explodes|date=August 9, 2004|access-date=February 13, 2023}}</ref>
* On February 15, 2005, AERA Corporation (formerly American Astronautics) announced its plans to send seven paying passengers into space as early as 2006, a full year before the first announced speculative [[Virgin Galactic]] flight.