NASA ScienceCasts: 解开宇宙起源之谜
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Click here to see more videos: https://alugha.com/NASA Visit http://science.nasa.gov/ for more. People around the world have the opportunity to participate in the study of comet 46P/Wirtanen as it has a close approach with Earth in December of 2018.
Earth observing instruments on the space station along with photography from crew members serve to keep a multifunctional eye on our home planet. Space Station Research & Tech: http://www.nasa.gov/iss-science NASA Science: http://science.nasa.gov/ Houston We Have a Podcast Episode - The View From