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ScienceCcast：第一场火星马拉松

在地球上，慢跑者只要几个小时就能完成马拉松。但在火星上，花了 11 年之久。美国航空航天局的机会号探测器在 2015 年越过了终点线。访问 http://science.nasa.gov/ 了解更多信息。点击这里查看更多视频：https://alugha.com/NASA 这段视频是 2015 年

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NASA ScienceCasts：太阳风的影响

点击这里观看更多视频:https://alugha.com/NASA 持续扩张的太阳风从太阳开始，一直到达太阳圈的边缘才停止。美国宇航局科学:http://science.nasa.gov/

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ScienceCasts: The 2016 Transit of Mercury

Click here to see more videos: https://alugha.com/NASA Visit http://science.nasa.gov/ for more. On May 9th (2016), Mercury will move across the face of the sun, offering a rare viewing opportunity for professional astronomers and backyard sky watchers alike. 2016 Mercury Transit: http://mercurytr

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ScienceCasts: August 2017: A Big Month for Astronomy

Click here to see more videos: https://alugha.com/NASA Visit http://science.nasa.gov/ for more. The Perseid meteor shower will peak on August 11, 12, and 13, and a Total Solar Eclipse will be visible in the United States from coast to coast on August 21. (This video is from 2017)