ATKeiper writes: "With the help of yet another committee in a long line of committees studying space, the Obama administration is reconsidering NASA's future in light of new budgetary realities and in the wake of a series of technical problems for the Constellation architecture that the space agency developed as part of the post-Columbia Vision for Space Exploration. In a new essay, aerospace engineer and blogger Rand Simberg reviews NASA's history and argues that the agency should scrap Constellation and instead work toward a space infrastructure — featuring propellant depots in orbit and elsewhere. 'It isn't NASA's job to put humans on Mars,' he writes. 'It's NASA's job to make it possible for the National Geographic Society, or an offshoot of the Latter-Day Saints, or an adventure tourism company, to put humans on Mars.'"
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