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  Missions

  Letter | Alliance Focused on Space Development, Not the Destination

  The Alliance for Space Development is firmly focused on the development that must precede a successful settlement effort regardless of the location — the moon, Mars, free space or asteroids — despite criticism that the alliance has not advocated on lunar settlement this year.

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• Missions

  Letter | A Different Viewpoint on NASA Asteroid Plan

  In “NASA’s Asteroid Absurdity,” Robert Zubrin gets a few things wrong regarding NASA’s gutsy plan to bring a small asteroid into cislunar space for an astronaut visit and to kick-start asteroid mining.

• Policy & Politics

  Letter: Obama China Policy Wise, Not Confused

• Commercial

  Letter: Commercial Spaceflight Offers Best Path Forward

• Launch

  Letter: Space Solar Power Could Spur Launches

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