ScienceCasts: 甲烷很臭吗?在地球、火星和远方

NASA 嗅出了在地球、火星和其他远方的甲烷味道是甜的。甲烷是一种温室气体,在某些地方,可能是古代生活的标志。 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

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