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星际物体是外星人探测器？专家质疑
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星际物体是外星人探测器？专家质疑
Interstellar object may have been alien probe, Harvard paper argues, but experts are skeptical
https://edition.cnn.com/2018/11/06/health/oumuamua-alien-probe-harvard-intl/index.html
https://blog.sciencenet.cn/blog-39731-1145841.html
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