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ScienceCasts:美国在太空中的首次亮相-探索者1号

1958年1月31日,美国成功地发射了卫星 "探索者1号 ",进入了 "太空竞赛",从而开始了太空探索。 更多内容请访问http://science.nasa.gov/。 探索者1号-网站:https://www.jpl.nasa.gov/missions/explorer-1/ 探索者1号-书:https://www.jpl.nasa.gov/about/downloads/Explorer1.pdf 点击这里查看更多视频:https://alugha.com/NASA

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