Fully one fifth of Manhattan is yard space, according to a new study from the City University of new York, and that doesn't include parks and cemeteries.

充分发挥个人思想的曼哈顿第五院子的空间，据来自纽约城市大学的新研究，并且不包括公园和墓地。

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"There's something very intriguing going on with that that we don't understand yet," said study lead author Brian Anderson, a space physicist at Johns Hopkins University Applied Physics Laboratory.

“有一些有趣的事情在发生，而我们还不能理解。”约翰·霍普金斯大学应用物理实验室的空间物理学家，该研究的主要作者Brian Anderson说。

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George Abbey, a former director of the Johnson space Centre and now a space-policy expert at Houston's Rice University, has similar worries.

乔治·阿贝，原约翰逊太空中心的主管，现休斯敦莱斯大学太空策略专家，也有相似的焦虑。

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The women recently earned master's degrees in space systems engineering from the University of Michigan.

VOA: special.2009.02.16

The 30-year-old made a phone call to the president of his alma mater, the International Space University (ISU), and the meeting was arranged.

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Pell founded the company with two others that he met at Singularity University, Naveen Jain, the founder of InfoSpace and Intelius, and Dr. Robert Richards, a founder of International Space University, who is CEO of Moon Express.

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