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Link....<br /><br />Sounds to me likr the "Excalibur Exploration Ltd." company is a shell for a key investor as it has no web presence I can find.<br /><br /><blockquote><font class="small">In reply to:</font><hr /><p>Plasma Rocket Engine: New Agreement Inked<br /><br />Posted on August 22, 2007 @ 09:44:36 EDT<br /><br />Author Leonard David<br /><br />The first agreement for the commercial use of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) has been signed. Work on the VASIMR concept has been championed by former NASA astronaut, Franklin Chang Diaz. <br /><br />The agreement involves the Houston, Texas-based Ad Astra Rocket Company — Diaz is Chairman and CEO of the firm — and Excalibur Exploration Ltd., a British company based in Douglas, Isle of Man.<br /><br />The deal grants Excalibur the right of first refusal to acquire VASIMR engines for space resource recovery.<br /><br />Furthermore, the agreement — signed August 20th between the two groups — also provides for an Excalibur-funded six month study to support the development of a conceptual asteroid mission using the VASIMR engine.<br /><br />That engine is a high power and high specific impulse plasma rocket, currently under development by Ad Astra to support solar and, ultimately, nuclear electric in-space propulsion needs.<br /><br />Ad Astra Rocket Company was founded in 2005 to commercialize the VASIMR engine, a promising propulsion breakthrough initially studied by NASA.<p><hr /></p></p></blockquote> <div class="Discussion_UserSignature"> </div>