The space agency is preparing to launch its highest-stakes mission in decades, carrying astronauts deeper into space than ever before.

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The president vowed to build a missile defense shield for the country in three years. It’s nowhere close to being done.

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Much of the president’s signature defense shield isn’t even supposed to be based on land.

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The unprecedented move follows a high-profile fight over who will run the space agency.

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The former, and possibly future, nominee for the space agency said he did not intend for the document’s public release.

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