mattnyc99 writes "Rand Simberg has a report from the Space 2007 conference about a new proposal from Boeing that would upend NASA's expensive plan to return to the moon by building a propellant refueling depot in sub-orbital space—saving tons more time, weight and money for the new lunar base. From the article: "How the propellant would reach such a pitstop in the sky is really the beauty of Boeing's concept. NASA has been seeking ways to involve both international partners and the commercial sector — Michael Griffin, the agency's administrator, said recently that such a 'private/public synergy' was 'crucial for the future' — but NASA has been reluctant to put any partner on the critical path. The good news? Anyone can make propellant, and anyone can deliver it." Sounds like NASA and the space billionaires might finally be able to help each other..."
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