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• Several scientists not involved in the project said they were simultaneously thrilled and skeptical, calling the plan daring, difficult -- and highly expensive. They struggle to see how it could be cost-effective, even with platinum and gold worth nearly $1,600 an ounce. An upcoming NASA mission to return just 2 ounces (60 grams) of an asteroid to Earth will cost about $1 billion. • But the entrepreneurs announcing the project Tuesday in Seattle have a track record of making big money off ventures into space. Company founders Eric Anderson (Continued on page 33)
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